American Chemical Suppliers

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Product
Vinyltoluene Monomer (m- and p- mixture) (stabilized with TBC) Vinyltoluene Monomer (m- and p- mixture) (stabilized with TBC). Group: Monomers. CAS No. 25013-15-4. Alfa Chemistry Materials 4
Vinyltributyl tin Vinyltributyl tin. Group: Biochemicals. Alternative Names: Ethenyltri butylstannane ; Tributylvinyltin; Vinyl tributyl stannate; tri butylstannylethylene . Grades: Highly Purified. CAS No. 7486-35-3. Pack Sizes: 5g, 10g, 25g, 50g, 100g. Molecular Formula: C14H30Sn. US Biological Life Sciences. USBiological 8
Worldwide
Vinyltriethylgermane Vinyltriethylgermane. Uses: Designed for use in research and industrial production. Additional or Alternative Names: VINYLTRIETHYLGERMANE. Product Category: Organic Germanium. CAS No. 6207-41-6. Molecular formula: C8H18Ge. Mole weight: 186.87. Density: 1005. Product ID: ACM6207416. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry.
Vinyl trifluoroacetate Vinyl trifluoroacetate. Uses: This product is suitable for scientific research. Additional or Alternative Names: Acetic acid, trifluoro-, ethenyl ester;TRIFLUOROACETIC ACID VINYL ESTER;VINYL TRIFLUOROACETATE;Vinyl trifluoroacetate 98%;Vinyltrifluoroacetate98%;Vinyl trifluoroacetate, 99%, stab. with ca 10ppm 3,5-di-tert-butylcatechol;Trifluoroacetic acid ethenyl este. Product Category: Polymer/Macromolecule. CAS No. 433-28-3. Molecular formula: CF3CO2CH=CH2. Mole weight: 140.06. Canonical SMILES: FC(F)(F)C(=O)OC=C. Density: 1.203 g/mL at 25 °C (lit.). ECNumber: 207-088-1. Product ID: ACM433283-3. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry.
Vinyl Trifluoroacetate, ≥97%,stabilized with TBC Vinyl Trifluoroacetate, ≥97%,stabilized with TBC. Group: Monomers. CAS No. 433-28-3. Product ID: ethenyl 2,2,2-trifluoroacetate. Molecular formula: 140.06g/mol. Mole weight: C4H3F3O2. C=COC(=O)C(F)(F)F. InChI=1S/C4H3F3O2/c1-2-9-3(8)4(5, 6)7/h2H, 1H2. ZBGRMWIREQJHPK-UHFFFAOYSA-N. Alfa Chemistry Materials 4
Vinyl Trifluoroacetate (stabilized with TBC) Vinyl Trifluoroacetate (stabilized with TBC). Group: Monomers. CAS No. 433-28-3. Product ID: ethenyl 2,2,2-trifluoroacetate. Molecular formula: 140.06g/mol. Mole weight: C4H3F3O2. C=COC(=O)C(F)(F)F. InChI=1S/C4H3F3O2/c1-2-9-3(8)4(5, 6)7/h2H, 1H2. ZBGRMWIREQJHPK-UHFFFAOYSA-N. Alfa Chemistry Materials 4
Vinyltrimethoxysilane It is used to modify polyethylene and other polymers by grafting its vinyl groups onto the polymer backbone using free radical initiators such as peroxides. This provides polymers with pendant trimethoxysilyl groups that can be used as moisture-activated crosslinking sites by hydrolysis of alkoxy groups and then condensation of the resulting silanol. When the silane-grafted polyethylene reacts to form a cross-linked or vulcanized polyethylene, cross-linked bonds are formed with water. This technology is widely used worldwide in commercial applications for wire and cable insulation, pipes and other similar purposes. The basic reaction sequence is as follows: using a peroxide initiator, reacting (grafting) polyethylene with vinyltrimethoxysilane in an extruder. The grafted polyethylene is then formed into final products, such as cable jackets, wire insulation or pipes. The forming step is usually completed by a second extrusion, during which the catalyst for the moisture curing step is added. Finally, due to the hydrolysis and condensation of the silane, the formed article is exposed to moisture or hot water, and the condensation forms a crosslink through the formation of Si-O-Si bonds. Uses: It can be used for polymer modification and polymer crosslinking. Group: Polymers. Alternative Names: Ethenyltrimethoxysilan; Trimethoxy(Vinyl)Silane; Vinymethyltrimethoxysilane; Ethenyltrimethoxysilane; Vtmo; Silane Coupling Age… Alfa Chemistry Materials 4
Vinyltrimethoxysilane Liquid; OtherSolid; WetSolid. Uses: It can be applied to polyethylene, polypropylene, unsaturated polyester and other polymers. Group: Saltself-assembly materials silane coupling agentsself assembly and lithographyposs nanohybrid materials self assembly and contact printing materials. Alternative Names: 1-(Trimethoxysilyl)ethene. CAS No. 2768-2-7. Pack Sizes: 190kg or 195kg PVF steel drum packing. Product ID: Ethenyl(trimethoxy)silane. Molecular formula: 148.23. Mole weight: C5H12O3Si. CO[Si](C=C)(OC)OC. InChI=1S/C5H12O3Si/c1-5-9(6-2, 7-3)8-4/h5H, 1H2, 2-4H3. NKSJNEHGWDZZQF-UHFFFAOYSA-N. 95%+. Alfa Chemistry Materials 6
Vinyltrimethylammonium bromide Vinyltrimethylammonium bromide. Uses: Designed for use in research and industrial production. Product Category: Bromine Series. CAS No. 10603-92-6. Molecular formula: C5H12N.Br. Mole weight: 166.06. Purity: >97.0%(T). Product ID: ACM10603926. Alfa Chemistry — ISO 9001:2015 Certified. Categories: Trimethyl(vinyl)ammonium bromide. Alfa Chemistry. 2
Vinyltrimethylsilane Vinyltrimethylsilane. Uses: Preparation of silyl-ethers by rh(I) catalysis. Group: Saltmonomers. Alternative Names: Ethenyltrimethylsilane, Trimethyl(vinyl)silane, (Trimethylsilyl)ethylene. CAS No. 754-05-2. Pack Sizes: Packaging 25 g in glass bottle. Product ID: Vinyltrimethylsilane. Molecular formula: 100.23. Mole weight: (CH3)3SiCHCH2. C[Si](C)(C)C=C. 1S/C5H12Si/c1-5-6(2, 3)4/h5H, 1H2, 2-4H3. GCSJLQSCSDMKTP-UHFFFAOYSA-N. ≥ 97%. Alfa Chemistry Materials 6
Vinyltriphenylphosphonium bromide Vinyltriphenylphosphonium bromide. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Triphenyl(vinyl)phosphonium bromide; Schweizer's reagent. Product Category: Bromine Series. Appearance: Solid. CAS No. 5044-52-0. Molecular formula: C20H18BrP. Mole weight: 369.24. Purity: 95%+. IUPACName: ethenyl(triphenyl)phosphanium;bromide. Canonical SMILES: C=C[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[Br-]. ECNumber: 225-740-3. Product ID: ACM5044520-1. Alfa Chemistry — ISO 9001:2015 Certified. Categories: Triphenylvinylphosphonium bromide. Alfa Chemistry. 2
Vinyltris(1-methoxy-2-propoxy)silane Vinyltris(1-methoxy-2-propoxy)silane. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 7-ethenyl-7-(3-methoxypropoxy)-2,6,8,12-tetraoxa-7-silatridecane; Silane,ethenyltris(2-methoxymethylethoxy)-(9CI); 2,6,8,12-tetraoxa-7-silatridecane,7-ethenyl-7-(3-methoxypropoxy); 7-(3-Methoxypropoxy)-7-vinyl-2,6,8,12-tetraoxa-7-silatridecane. Product Category: Siloxanes. Appearance: Transparent liquid. CAS No. 303746-21-6. Molecular formula: C14H30O6Si. Mole weight: 322.47. Purity: 95%+. IUPACName: ethenyl-tris(3-methoxypropoxy)silane. Canonical SMILES: COCCCO[Si](C=C)(OCCCOC)OCCCOC. Density: 0.981 g/cm³. Product ID: ACM303746216. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry. 2
Vinyltris(2-Methoxyethoxy)Silane It is a vinyl functional silane coupling agent which can improve adhesion on various organic polymers. Uses: It can be used to improve adhesion between various organic polymers and inorganic materials such as silica, silicates and fiber glass. Group: Silane coupling agentsself assembly and contact printing materials. Alternative Names: Vinyltris(2-methoxyethoxy)silane. CAS No. 1067-53-4. Pack Sizes: 10 g; 100 g. Product ID: ethenyl-tris(2-methoxyethoxy)silane. Molecular formula: 280.39. Mole weight: C11H24O6Si. COCCO[Si](C=C)(OCCOC)OCCOC. InChI=1S/C11H24O6Si/c1-5-18 (15-9-6-12-2, 16-10-7-13-3)17-11-8-14-4/h5H, 1, 6-11H2, 2-4H3. WOXXJEVNDJOOLV-UHFFFAOYSA-N. 95%. Alfa Chemistry Materials 5
Vinyltris(Dimethylsiloxy)Silane Vinyltris(Dimethylsiloxy)Silane. Uses: Designed for use in research and industrial production. Product Category: Siloxanes. Appearance: Transparent liquid. CAS No. 160172-46-3. Molecular formula: C8H24O3Si4. Mole weight: 280.61 g/mol. Purity: 95%+. IUPACName: Vinyl tris(dimethylsiloxy)silane. Density: 1.01g/cm g/mL. Product ID: ACM160172463. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry. 2
Vinyltris(Methylethylketoxime)Silane It is an important MEKO silane which mainly acts as a crosslinking agent. Uses: It is mainly used as a crosslinking agent for rtv silicone rubbers. it can be used as a neutral curing agent in the formulation of silicone sealants. Additional or Alternative Names: Vinyltris(methylethylketoximi)silane;Tri(2-butaneneoxime)vinylsilane;Vinyltris(2-butylidenamioxy)silane. Product Category: Other Organosilicon. Appearance: Clear liquid. CAS No. 2224-33-1. Molecular formula: C14H27N3O3Si. Mole weight: 313.47. Purity: >96%. IUPACName: (E)-N-[bis[[(E)-butan-2-ylideneamino]oxy]-ethenylsilyl]oxybutan-2-imine. Canonical SMILES: CCC(=NO[Si](C=C)(ON=C(C)CC)ON=C(C)CC)C. Density: 0.975 g/mL. ECNumber: 218-747-8. Product ID: ACM2224331. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry.
Vinyltris(Trimethylsiloxy)Silane Vinyltris(Trimethylsiloxy)Silane. Group: Self assembly and contact printing materials. Alternative Names: Vinyltris(trimethylsilyloxy)silane; Vinyltris(trimethylsiloxy)silane ([Tris (trimethylsiloxy)silyl]ethylene; ethenyl-tris(trimethylsilyloxy)silane; 1,1,1,5,5,5-Hexamethyl-3-((trimethylsilyl)oxy)-3-vinyltrisiloxane. CAS No. 5356-84-3. Pack Sizes: 10 g; 100 g. Product ID: ethenyl-tris(trimethylsilyloxy)silane. Molecular formula: 322.7 g/mol. Mole weight: C11H30O3Si4. C[Si] (C) (C)O[Si] (C=C) (O[Si] (C) (C)C)O[Si] (C) (C)C. CHEFFAKKAFRMHG-UHFFFAOYSA-N. 95%+. Alfa Chemistry Materials 6
Vinyl-Tris(Tri-Sec-Butoxysiloxanyl)Silane Vinyl-Tris(Tri-Sec-Butoxysiloxanyl)Silane. Uses: Designed for use in research and industrial production. Additional or Alternative Names: VINYLTRIS(TRI-SEC-BUTOXYSILOXANYL)SILANE;Vinyltris(tri-sec-butoxysilyloxy)silane. Product Category: Heterocyclic Organic Compound. CAS No. 60711-52-6. Molecular formula: C38H84O12Si4. Mole weight: 845.41. Product ID: ACM60711526. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry. 3
Vinyltri-T-Butoxysilane Vinyltri-T-Butoxysilane. Uses: Designed for use in research and industrial production. Additional or Alternative Names: VinyltritbutoxysilaneTri-Tert-Butoxy(Ethenyl)SilaneDioxydisilane. Product Category: Siloxanes. Appearance: Liquid. CAS No. 5356-88-7. Molecular formula: C14H30O3Si. Mole weight: 274.47 g/mol. Purity: 95%+. IUPACName: ethenyl-tris[(2-methylpropan-2-yl)oxy]silane. Density: 0,869 g/mL. Product ID: ACM5356887. Alfa Chemistry — ISO 9001:2015 Certified. Categories: Silyl peroxide. Alfa Chemistry.
Vinyl valerate Vinyl valerate. Uses: This product is suitable for scientific research. Additional or Alternative Names: Valeric acid, vinyl ester, Vinyl pentanoate, Pentanoic acid, ethenyl ester. Product Category: Polymer/Macromolecule. CAS No. 5873-43-8. Molecular formula: C7H12O2. Mole weight: 128.17. Purity: ≥ 97%. IUPACName: ethenyl pentanoate. Canonical SMILES: CCCCC(=O)OC=C. Density: 0.899 g/mL at 25 °C. Product ID: ACM5873438-1. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry. 2
Violacein It is a nitrogenous heterocyclic indole antibiotic produced by the strain of Chromobacterium violaceum. It has anti-gram-positive bacteria, fungi and protozoa effects. The serum has an effect on its activity. Synonyms: (3E)-3-[5-(5-Hydroxy-1H-indol-3-yl)-2-oxo-1,2-dihydro-3H-pyrrol-3-yliden]-1,3-dihydro-2H-indol-2-one; 2H-Indol-2-one, 3-[1,2-dihydro-5-(5-hydroxy-1H-indol-3-yl)-2-oxo-3H-pyrrol-3-ylidene]-1,3-dihydro-, (3E)-. Grades: ≥ 95% (violacein and deoxyviolacein)?Violacein ≥ 80%. CAS No. 548-54-9. Molecular formula: C20H13N3O3. Mole weight: 343.34. BOC Sciences 5
violacein synthase The enzyme, characterized from the bacterium Chromobacterium violaceum, participates in the biosynthesis of the violet pigment violacein. The products, violaceinate and deoxyviolaceinate, undergo non-enzymic autooxidation into violacein and deoxyviolacein, respectively. Group: Enzymes. Synonyms: proviolaceinate monooxygenase; vioC (gene name). Enzyme Commission Number: EC 1.14.13.224. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-0827; violacein synthase; EC 1.14.13.224; proviolaceinate monooxygenase; vioC (gene name). Cat No: EXWM-0827. Creative Enzymes
Violaceol I Violaceol I is an aromatic ether in which the ether functionality links two 2,3-dihydroxy-5-methylphenyl groups. Fungal metabolite isolated inter alia from Aspergillus spp. It has a role as a mycotoxin and a metabolite. It is a member of catechols and an aromatic ether. Synonyms: violaceol i; violaceol-I; NSC-330927; 3,3'-Oxybis(5-methyl-1,2-benzenediol). Grades: ≥95%. CAS No. 68027-81-6. Molecular formula: C14H14O5. Mole weight: 262.26. BOC Sciences 7
Violaceol II It is a mycotoxin isolated from Emericella violacea and Aspergillus spp. It has weak activity against Gram-positive bacteria, Gram-negative bacteria, fungi and yeast. Synonyms: violacerol-II; 3-(2,6-dihydroxy-4-methylphenoxy)-5-methylbenzene-1,2-diol; 5-methyl-2-[5-methyl-2,3-bis(oxidanyl)phenoxy]benzene-1,3-diol; 2-(2,3-dihydroxy-5-methyl-phenoxy)-5-methyl-resorcinol. CAS No. 81827-49-8. Molecular formula: C14H14O5. Mole weight: 262.26. BOC Sciences 5
Violacin A Violacin A is an antibacterial peptide isolated from Viola odorata. It has low hemolytic activity. Synonyms: cyclo[Ala-Ile-Ser-Cys(1)-Gly-Glu-Thr-Cys(2)-Phe-Lys-Phe-Lys-Cys(3)-Tyr-Thr-Pro-Arg-Cys(1)-Ser-Cys(2)-Ser-Tyr-Pro-Val-Cys(3)-Lys-Ser]; SAISCGETCFKFKCYTPRCSCSYPVCK. Molecular formula: C129H191N33O37S6. Mole weight: 2988.5. BOC Sciences 4
Violanone Violanone, an isoflavanone compound, can inhibit tubulin polymerization. Violanone also exhibits larvicidal activity against A. aegypti. Uses: Designed for use in research and industrial production. Product Category: Inhibitors. CAS No. 52250-38-1. Molecular formula: C17H16O6. Mole weight: 316.31. Canonical SMILES: O=C1C2=CC=C(C=C2OCC1C3=CC=C(C(O)=C3OC)OC)O. Product ID: ACM52250381. Alfa Chemistry — ISO 9001:2015 Certified. Categories: Viola-Jones object detection framework. Alfa Chemistry.
Violanthin Violanthin is a flavonoid showing antioxidant and antibacterial activities. Synonyms: Violanthin; 40581-17-7; C10196; 5,7-dihydroxy-2-(4-hydroxyphenyl)-6-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-8-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]chromen-4-one5,7-dihydroxy-2-(4-hydroxyphenyl)-6-[(2S,3S,4R,5R,6R)-3,4,5-trihydroxy -6-(hydroxymethyl)oxan-2-yl]-8-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-me thyl-oxan-2-yl]chromen-4-one. Grades: 0.98. CAS No. 40581-17-7. Molecular formula: C27H30O14. Mole weight: 578.5. BOC Sciences 9
Violanthrone 79 Violanthrone 79. Group: Biochemicals. Alternative Names: 16, 17-Bis (octyloxy) anthra [9, 1, 2-cde]benzo [rst]pentaphene-5, 10-dione. Grades: Highly Purified. CAS No. 85652-50-2. Pack Sizes: 100mg. Molecular Formula: C50H48O4, Molecular Weight: 712.91. US Biological Life Sciences. USBiological 4
Worldwide
Violanthrone-79 Violanthrone-79. Group: other materials. CAS No. 85652-50-2. Product ID: 30, 34-dioctoxynonacyclo[18.10.2.22, 5.03, 16.04, 13.06, 11.017, 31.022, 27.028, 32]tetratriaconta-1(30), 2(34), 3(16), 4(13), 5(33), 6, 8, 10, 14, 17(31), 18, 20(32), 22, 24, 26, 28-hexadecaene-12, 21-dione. Molecular formula: 712.9g/mol. Mole weight: C50H48O4. CCCCCCCCOC1=C2C3=C (C=CC4=C3C (=C1)C5=CC=CC=C5C4=O)C6=C7C2=C (C=C8C7=C (C=C6)C (=O)C9=CC=CC=C98)OCCCCCCCC. InChI= 1S / C50H48O4 / c1-3-5-7-9-11-17-27-53-41-29-39-31-19 -13-15-21-35 (31) 49 (51) 37-25-23-33-34-24-26-38-44-40 (32-20-14-16-22-36 (32) 50 (38) 52) 30-42 (54-28-18-12-10-8-6-4-2) 48 (46 (34) 44) 47 (41) 45 (33) 4 3 (37) 39 / h13-16, 19-26, 29-30H, 3-12, 17-18, 27-28H2, 1-2H3. LLPQZABTDLOYAL-UHFFFAOYSA-N. Alfa Chemistry Materials 7
violaxanthin de-epoxidase Along with EC 1.14.13.90, zeaxanthin epoxidase, this enzyme forms part of the xanthophyll (or violaxanthin) cycle for controlling the concentration of zeaxanthin in chloroplasts. It is activated by a low pH of the thylakoid lumen (produced by high light intensity). Zeaxanthin induces the dissipation of excitation energy in the chlorophyll of the light-harvesting protein complex of photosystem II. In higher plants the enzyme reacts with all-trans-diepoxides, such as violaxanthin, and all-trans-monoepoxides, but in the alga Mantoniella squamata, only the diepoxides are good substrates. Group: Enzymes. Synonyms: VDE. Enzyme Commission Number: EC 1.23.5.1. CAS No. 57534-73-3. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1269; violaxanthin de-epoxidase; EC 1.23.5.1; 57534-73-3; VDE. Cat No: EXWM-1269. Creative Enzymes
Violaxanthin (Mixture of Diastereomers) Violaxanthin is a carotenoid found in prickly pear fruit. Group: Biochemicals. Alternative Names: 5,6,5’,6’-Tetrahydrozeaxanthin 5,6:5’,6’-diepoxide; (1R, 1’R, 3S, 3’S)-6, 6’-((3E, 5E, 7E, 9E, 11E, 13E, 15E)-3, 7, 12, 16-Tetramethyloctadeca-1, 3, 5, 7, 9, 11, 13, 15, 17-nonaene-1, 18-diyl)bis(1, 5, 5-trimethyl-7-oxabicyclo[4. 1. 0]heptan-3-ol). Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences. USBiological 9
Worldwide
Violettyne MIP Violettyne MIP. CAS No. 166432-52-6. VIGON Item # 502849. Categories: Speciality Ingrdients Suppliers, Fragrances, Perfumers. Vigon
America & Internationally
Violuric acid Violuric acid is a redox mediator used in the laccase system. The violuric acid assay is a method to ascertain that the high-redox potential of laccase is not lost during directed evolution [1] [2]. Uses: Scientific research. Group: Signaling pathways. CAS No. 87-39-8. Pack Sizes: 1 g; 5 g; 10 g. Product ID: HY-W097009. MedChemExpress MCE
Viomellein (BRN4630536) Genotoxic mycotoxin. Antibacterial (Gram-positive) and insecticidal. Group: Biochemicals. Grades: Highly Purified. CAS No. 55625-78-0. Pack Sizes: 500ug, 1mg. US Biological Life Sciences. USBiological 4
Worldwide
Viomycin Tuberactinomycin B is a member of the tuberactinomycin family of antibiotics used for the treatment of multidrug-resistant tuberculosis. Tuberactinomycin B inhibits group I intron splicing and prokaryotic protein synthesis, and freezes bacterial ribosomes in either the pre-or post-translational state. Uses: The treatment of multidrug-resistant tuberculosis. Synonyms: Tuberactinomycin B; Celiomycin; Florimycin; Viomicina; Viomycine; Viomycinum. CAS No. 32988-50-4. Molecular formula: C25H43N13O10. Mole weight: 685.69. BOC Sciences 5
viomycin kinase Acts also on capreomycins. A serine residue in the peptide antibiotics acts as phosphate-acceptor. Group: Enzymes. Synonyms: viomycin phosphotransferase; capreomycin phosphotransferase. Enzyme Commission Number: EC 2.7.1.103. CAS No. 77000-11-4. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2950; viomycin kinase; EC 2.7.1.103; 77000-11-4; viomycin phosphotransferase; capreomycin phosphotransferase. Cat No: EXWM-2950. Creative Enzymes
Viomycin sulfate It is a peptide antibiotic produced by the strain of Str. puniceus 1314-5 and Str. floridae A5014. It has broad-spectrum antibacterial and strong anti-mycobacterium effect. 1-10 μg/mL of Viomycin can inhibit the growth of most tuberculosis bacilli, the main effect is to inhibit the protein synthesis of bacteria, but bacteria are prone to develop drug resistance. In clinical application, it is only used as a second-line drug to treat tuberculosis. Synonyms: Tuberactinomycin B sulfate salt; celicomycin-sulfate; florimycin sulfate; Vinacetin A sulfate; hexanamide, 3,6-diamino-N-[(3S,6Z,9S,12S,15S)-6-[[(aminocarbonyl)amino]methylene]-3-[(4R,6S)-2-amino-3,4,5,6-tetrahydro-6-hydroxy-4-pyrimidinyl]-9,12-bis(hydroxymethyl)-2,5,8,11,14-pentaoxo-1,4,7,10,13-pentaazacyclohexadec-15-yl]-, (3S)-, sulfate (1:1) (salt). CAS No. 37883-00-4. Molecular formula: C25H43N13O10.H2O4S. Mole weight: 783.77. BOC Sciences 6
Viomycin trihydrochloride It is a peptide antibiotic produced by the strain of Str. puniceus 1314-5 and Str. floridae A5014. It has broad-spectrum antibacterial and strong anti-mycobacterium effect. 1-10 μg/mL of Viomycin can inhibit the growth of most tuberculosis bacilli, the main effect is to inhibit the protein synthesis of bacteria, but bacteria are prone to develop drug resistance. In clinical application, it is only used as a second-line drug to treat tuberculosis. Synonyms: Florimycin trihydrochloride; Viomycinum trihydrochloride; Vinacetin A trihydrochloride; Hexanamide, 3,6-diamino-N-[(3S,6Z,9S,12S,15S)-6-[[(aminocarbonyl)amino]methylene]-3-[(4R,6S)-2-amino-1,4,5,6-tetrahydro-6-hydroxy-4-pyrimidinyl]-9,12-bis(hydroxymethyl)-2,5,8,11,14-pentaoxo-1,4,7,10,1 3-pentaazacyclohexadec-15-yl]-, (3S)-, hydrochloride (1:3). CAS No. 39750-31-7. Molecular formula: C25H43N13O10.3HCl. Mole weight: 795.07. BOC Sciences 5
Vioxanthin Vioxanthin is an antibiotic produced by Malbranchea pulchella var. sulfurea. It is active against gram-positive bacteria and bacteroides fragilis. Synonyms: Tf-26Vx. CAS No. 15447-05-9. Molecular formula: C30H26O10. Mole weight: 546.5. BOC Sciences 5
Vioxx Vioxx. Group: Biochemicals. Alternative Names: 4-[4- (Methylsulfonyl) phenyl]-3-phenyl-2 (5H) -furanone. Grades: Highly Purified. CAS No. 162011-90-7. Pack Sizes: 50mg, 100mg, 250mg, 500mg, 1g. Molecular Formula: C17H14O4S. US Biological Life Sciences. USBiological 8
Worldwide
Vioxx-d5 (Major) A selective labeled cyclooxygenase-2 (COX-2) inhibitor. Use as an anti-inflammatory, analgesic. Group: Biochemicals. Alternative Names: 4-[4- (Methylsulfonyl) phenyl]-3- (phenyl-d5) -. Grades: Highly Purified. CAS No. 544684-93-7. Pack Sizes: 1mg. US Biological Life Sciences. USBiological 3
Worldwide
Vioxx (Rofecoxib, MK-0966, 4-[4-(methylsulfonyl)-phenyl]-3-phenyl-2(5H)-furanone) A selective cyclooxygenase-2 (COX-2) inhibitor. Use as an anti-inflammatory. Group: Biochemicals. Alternative Names: Rofecoxib, MK-0966, 4-[4-(methylsulfonyl)-phenyl]-3-phenyl-2(5H)-furanone. Grades: Highly Purified. CAS No. 162011-90-7. Pack Sizes: 100mg. US Biological Life Sciences. USBiological 1
Worldwide
Vip Vip. Uses: Designed for use in research and industrial production. Additional or Alternative Names: VASOACTIVE INTESTINAL PEPTIDE (HUMAN, BOVINE, PORCINE, RAT);VASOACTIVE INTESTINAL PEPTIDE (HUMAN, PORCINE);VASOACTIVE INTESTINAL PEPTIDE, HUMAN, PORCINE, AND RAT;VASOACTIVE INTESTINAL PEPTIDE (HUMAN, PORCINE) (BOVINE, RAT, CANINE);VASOACTIVE INTESTINAL PEPTIDE HUMAN, PORCINE, RAT;VASOACTIVE INTESTINAL PEPTIDE, HUMAN, PORCINE, RAT, OVINE;VASOACTIVE INTESTINAL PEPTIDE, PORCINE;VASOACTIVE INTESTINAL PEPTIDE. Product Category: Heterocyclic Organic Compound. Appearance: powder. CAS No. 40077-57-4. Molecular formula: C147H238N44O42S. Mole weight: 3325.8. Product ID: ACM40077574. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry. 5
Vip(4-28)(human,bovine,porcine,rat) Vip(4-28)(human,bovine,porcine,rat). Uses: Designed for use in research and industrial production. Additional or Alternative Names: AVIPTADIL (4-28);H-ALA-VAL-PHE-THR-ASP-ASN-TYR-THR-ARG-LEU-ARG-LYS-GLN-MET-ALA-VAL-LYS-LYS-TYR-LEU-ASN-SER-ILE-LEU-ASN-NH2;VIP (4-28) (HUMAN, BOVINE, PORCINE, RAT). Product Category: Heterocyclic Organic Compound. CAS No. 64326-02-9. Molecular formula: C134H221N39O36S. Product ID: ACM64326029. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry. 3
VIP (6-28) (human, rat, porcine, bovine) VIP (6-28) (human, rat, porcine, bovine) is an effective antagonist of the actions of exogenous vasoactive intestinal peptide (VIP) on cAMP. Synonyms: Aviptadil (6-28); Vasoactive Intestinal Peptide (6-28). CAS No. 69698-54-0. Molecular formula: C126H207N37O34S. Mole weight: 2816.28. BOC Sciences 3
Vipadenant Vipadenant is an adenosine A2 receptor antagonists used as an immunosuppressant. Synonyms: BG-14; CEB-4520; V2006; VER-11135; VER-A00-11; VER-A00049; VER-ADO-49; VR-2006. CAS No. 442908-10-3. Molecular formula: C16H15N7O. Mole weight: 321.34. BOC Sciences 9
VIP Antagonist VIP antagonist, a hybrid of neurotensin (6-11) and VIP (7-28), is a competitive antagonist of VIP-binding to glial cells. In rats with reduced masculine potency, it significantly inhibits VIP-stimulated sexual behavior. It antagonizes VIP receptors on non-small cell lung cancer cells, thereby inhibiting tumor growth in vivo and in vitro. Synonyms: [Lys1,Pro2,5,Arg3,4,Tyr6]VIP, human, porcine, rat, ovine; H-Lys-Pro-Arg-Arg-Pro-Tyr-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH2; L-lysyl-L-prolyl-L-arginyl-L-arginyl-L-prolyl-L-tyrosyl-L-threonyl-L-alpha-aspartyl-L-asparagyl-L-tyrosyl-L-threonyl-L-arginyl-L-leucyl-L-arginyl-L-lysyl-L-glutaminyl-L-methionyl-L-alanyl-L-valyl-L-lysyl-L-lysyl-L-tyrosyl-L-leucyl-L-asparagyl-L-seryl-L-isoleucyl-L-leucyl-L-asparaginamide; [Lys1,Pro2,5,Arg3,4,Tyr6]-Vasoactive Intestinal Peptide human, porcine, rat. Grades: 95%. CAS No. 125093-93-8. Molecular formula: C154H257N49O40S. Mole weight: 3467.06. BOC Sciences 6
VIP (guinea pig) VIP (guinea pig) is a neuropeptide that plays a role in neurotransmission, smooth muscle relaxation and has trophic and mitogenic actions. CAS No. 96886-24-7. Molecular formula: C147H239N43O42S2. Mole weight: 3346. BOC Sciences 10
VIP(Guinea pig) VIP Guinea pig (Vasoactive intestinal peptide), a trophic and mitogenic factor, stimulates growth in whole cultured embryos. VIP Guinea pig functions as a simple gastrointestinal hormone and suggest a possible neurotransmitter function [1] [2]. Uses: Scientific research. Group: Peptides. Alternative Names: Vasoactive Intestinal Peptide, guinea pig. CAS No. 96886-24-7. Pack Sizes: 5 mg; 10 mg. Product ID: HY-P1015. MedChemExpress MCE
Viphi A Viphi A is a cytotoxic cyclic peptide isolated from Viola philippica, which shows cytotoxic activity to cancer cell lines MM96L, HeLa and BGC-823. Synonyms: Gly-Ser-Ile-Pro-Cys-Gly-Glu-Ser-Cys-Val-Phe-Ile-Pro-Cys-Ile-Ser-Ser-Val-Ile-Gly-Cys-Ala-Cys-Lys-Ser-Lys-Val-Cys-Tyr-Lys-Asn. Mole weight: 3170. BOC Sciences 4
Viphi D Viphi D is a cytotoxic cyclic peptide isolated from Viola philippica, which shows cytotoxic activity to cancer cell lines MM96L, HeLa and BGC-823. Synonyms: Gly-Ile-Pro-Cys-Gly-Glu-Ser-Cys-Val-Phe-Ile-Pro-Cys-Ile-Ser-Ser-Val-Ile-Gly-Cys-Ser-Cys-Ser-Ser-Lys-Val-Cys-Tyr-Arg-Asn. Mole weight: 3086.3. BOC Sciences 4
Viphi E Viphi E is a cytotoxic cyclic peptide isolated from Viola philippica, which shows cytotoxic activity to cancer cell lines MM96L, HeLa and BGC-823. Synonyms: Gly-Ser-Ile-Pro-Cys-Gly-Glu-Ser-Cys-Val-Phe-Ile-Pro-Cys-Ile-Ser-Ala-Val-Ile-Gly-Cys-Ser-Cys-Ser-Asn-Lys-Val-Cys-Tyr-Lys-Asn. Mole weight: 3456.24. BOC Sciences 4
Viphi F Viphi F is a cytotoxic cyclic peptide isolated from Viola philippica, which shows cytotoxic activity to cancer cell lines MM96L, HeLa and BGC-823. Synonyms: Gly-Ser-Ile-Pro-Cys-Gly-Glu-Ser-Cys-Val-Phe-Ile-Pro-Cys-Ile-Ser-Ala-Ile-Ile-Gly-Cys-Ser-Cys-Ser-Ser-Lys-Val-Cys-Tyr-Lys-Asn. Mole weight: 3143.3. BOC Sciences 4
Viphi G Viphi G is a cytotoxic cyclic peptide isolated from Viola philippica, which shows cytotoxic activity to cancer cell lines MM96L, HeLa and BGC-823. Synonyms: Gly-Ser-Ile-Pro-Cys-Gly-Glu-Ser-Cys-Val-Phe-Ile-Pro-Cys-Ile-Ser-Ala-Ile-Ile-Gly-Cys-Ser-Cys-Ser-Asn-Lys-Val-Cys-Tyr-Lys-Asn. Mole weight: 3170.36. BOC Sciences 4
Vipivotide tetraxetan Vipivotide tetraxetan (PSMA-617) is a high potent prostate-specific membrane antigen (PSMA) inhibitor, with a K i of 0.37 nM. Vipivotide tetraxetan (PSMA-617) is designed consisting of three components: the pharmacophore Glutamate-urea-Lysine, the chelator DOTA able to complex both 68Ga or 177Lu, and a linker connecting these two entities. Glutamate-urea-Lysine is the selective pharmacophore to bind to prostate specific membrane antigen. Uses: Scientific research. Group: Signaling pathways. Alternative Names: PSMA-617. CAS No. 1702967-37-0. Pack Sizes: 10 mM * 1 mL; 1 mg; 2 mg; 5 mg; 10 mg; 50 mg; 100 mg. Product ID: HY-117410. MedChemExpress MCE
Viramidine Hydrochloride Viramidine Hydrochloride. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 1-β-D-Ribofuranosyl-1H-1,2,4-triazole-3-carboximidamide Monohydrochloride. Appearance: White Solid. CAS No. 40372-00-7. Molecular formula: C8H14ClN5O4. Mole weight: 279.68. Purity: 0.98. Product ID: ACM40372007. Alfa Chemistry — ISO 9001:2015 Certified. Categories: Taribavirin hydrochloride. Alfa Chemistry. 3
Viramidine Hydrochloride Taribavirin hydrochloride is an orally active inosine monophosphate dehydrogenase inhibitor, has activity against a wide range of viruses, especially the hepatitis C virus and influenza virus. Taribavirin hydrochloride is a Ribavirin prodrug, is designed to concentrate within the liver to target HCV-infected hepatocytes while minimizing distribution within red blood cells (RBCs) and the development of hemolytic anemia. Uses: Antiviral agents. Synonyms: 1-β-D-Ribofuranosyl-1H-1,2,4-triazole-3-carboximidamide Monohydrochloride; AVS 206; ICN 3142; Ribamidine Hydrochloride; Taribavirin Hydrochloride. Grades: 98%. CAS No. 40372-00-7. Molecular formula: C8H14ClN5O4. Mole weight: 279.68. BOC Sciences 3
Viranamycin A It is produced by the strain of Str. sp. CH 41. It can inhibit the growth of murine leukemia cell P388 with IC50 of 5.8 ng/mL, and it can also inhibit KB human multi-squamous cell carcinoma cells with IC50 of 6.4 ng/mL. Synonyms: Concanamycin A, 23-O-(3-carboxy-1-oxo-2-propenyl)-23-O-de[4-O-(aminocarbonyl)-2,6-dideoxy-b-D-arabino-hexopyranosyl]-25-de(1-propenyl)-25-methyl-. CAS No. 139595-03-2. Molecular formula: C41H64O13. Mole weight: 764.94. BOC Sciences 5
Viranamycin B It is produced by the strain of Str. sp. CH 41. It can inhibit the growth of murine leukemia cell P388 with IC50 of 2.8 ng/mL, and it can also inhibit KB human multi-squamous cell carcinoma cells with IC50 of 1.9 ng/mL. Synonyms: Concanamycin A, 25-de(1-propenyl)-25-methyl-. CAS No. 139595-04-3. Molecular formula: C44H73NO14. Mole weight: 840.05. BOC Sciences 5
Virantmycin Virantmycin. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Virantmycin, NSC 374127, CID100206, NSC374127, LS-141710, 6-Quinolinecarboxylic acid, 1,2,3,4-tetrahydro-3-chloro-2-(3,4-dimethyl-3-pentenyl)-2-(methoxymethyl)-, (2S-trans)-, 6-Quinolinecarboxylic acid, 3-chloro-2-(3,4-dimethyl-3-pentenyl)-1,2,3,4-tetrahydro-2-(methoxymethyl)-, 76417-04-4. Product Category: Heterocyclic Organic Compound. CAS No. 76417-04-4. Molecular formula: C19H26ClNO3. Mole weight: 351.867640 [g/mol]. Purity: 0.96. IUPACName: 3-chloro-2-(3,4-dimethylpent-3-enyl)-2-(methoxymethyl)-3,4-dihydro-1H-quinoline-6-carboxylic acid. Product ID: ACM76417044. Alfa Chemistry — ISO 9001:2015 Certified. Alfa Chemistry. 5
Virantmycin It is produced by the strain of Str. nitrosporeus AM-2722. It has antiviral effect. It inhibits four RNA viruses and four DNA viruses with MIC (μg/mL) of 0.008-0.04 and 0.005-0.03, respectively. It has weak antifungal effect. Synonyms: 6-Quinolinecarboxylic acid, 3-chloro-2-(3,4-dimethyl-3-penten-1-yl)-1,2,3,4-tetrahydro-2-(methoxymethyl)-, (2R,3R)-; NSC 374127; 6-Quinolinecarboxylic acid, 3-chloro-2-(3,4-dimethyl-3-pentenyl)-1,2,3,4-tetrahydro-2-(methoxymethyl)-, (2R-cis)-; (-)-Virantmycin. Grades: 99%. CAS No. 76417-04-4. Molecular formula: C19H26C1NO3. Mole weight: 351.87. BOC Sciences 6
VIRE_HELVI Virescein VIRE_HELVI Virescein is an antibacterial peptide isolated from Helioth is virescens. Synonyms: Virescein (Insects, animals); Gly-Lys-Ile-Pro-Ile-Gly-Ala-Ile-Lys-Lys-Ala-Gly-Lys-Ala-Ile-Gly-Lys-Gly-Leu-Arg-Ala-Val-Asn-Ile-Ala-Ser-Thr-Ala-His-Asp-Val-Tyr-Thr-Phe-Phe-Lys-Pro-Lys-Lys-Arg-His. Molecular formula: C202H336N60O49. Mole weight: 4389.26. BOC Sciences 4
Virensic acid It is a lichen acid with enzyme inhibitory potential. Synonyms: 11H-Dibenzo[b,e][1,4]dioxepin-7-carboxylic acid, 4-formyl-3,8-dihydroxy-1,6,9-trimethyl-11-oxo-; 10-formyl-3,9-dihydroxy-1,4,7-trimethyl-6-oxobenzo[b][1,4]benzodioxepine-2-carboxylic acid; Granulatine; NSC 685587. CAS No. 668-14-4. Molecular formula: C18H14O8. Mole weight: 358.30. BOC Sciences 5
Viresin Viresin is an antibacterial protein isolated from immune hemolymph of Helioth is virescens pupae. Viresin showed antibacterial activity against several Gram-negative bacteria including E. cloacae but not against Gram-positive bacteria. Synonyms: Tyr-Asp-Asn-Val-Asn-Leu-Asp-Glu-Ile-Leu-Ala-Asn-Asp-Arg-Leu-Leu-Val-Pro-Tyr-Ile-Lys-Cys-Leu-Leu-Asp-Glu-Gly-Lys-Lys-Ala-Pro-Asp-Ala-Lys-Glu-Leu-Lys-Glu-His-Ile-ArgX-Ala-Leu. Molecular formula: C221H361N59O66S. Mole weight: 5062.06. BOC Sciences 4
Virgaureagenin G Virgaureagenin G. Group: Biochemicals. CAS No. 22338-71-2. Pack Sizes: 5mg. US Biological Life Sciences. USBiological 9
Worldwide
Virginiamycin Virginiamycin complex contains two streptogramin antibiotics, virginiamycin M1 (75%) and virginiamycin S1 (25%). It is an antibiotic used primarily in the treatment of staphylococcal infections, and to a less extent streptococcal infections. Uses: Anti-bacterial agents. Synonyms: Pristinamycin. CAS No. 11006-76-1. Molecular formula: C71H84N10O17. Mole weight: 1349.48. BOC Sciences
Virginiamycin Virginiamycin. Uses: For analytical and research use. Group: Pharma & vet compounds & metabolites; pharma & vet compounds & metabolites; chiral molecules. Alternative Names: Pyostacin, Stafac, Eskalin 500, Streptogramin, Stafac 500, Livelong, Eskalin V,Mikamycin, Stafac 20, Stapyocine, Virgimycin, Pyostacine, Lactrol. CAS No. 11006-76-1. Molecular Formula: C43H49N7O10+C28H35N3O7. Mole Weight: 1349.51. Catalog: APS11006761. SMILES: CCC1C (=O) N2CCCC2C (=O) N (C (C (=O) N3CCC (=O) CC3C (=O) NC (C (=O) OC (C (C (=O) N1) NC (=O) C4=C (C=CC=N4) O) C) C5=CC=CC=C5) CC6=CC=CC=C6) C. CC1C=CC (=O) NCC=CC (=CC (CC (=O) CC2=NC (=CO2) C (=O) N3CCC=C3C (=O) OC1C (C) C) O) C. Format: Neat. Alfa Chemistry Analytical Products
Virginiamycin B Pristinamycin IA is an ester peptide antibiotic produced by Str. pristinaespiralis 5647 (NRRL 2958). Activity against gram-positive bacteria. Synonyms: Ostreogrycin B, Pristinamycin IA, Streptogramin B, Syncothrecin B1, Synergistin B, Vernamycin Balpha, Virginiamycin 1A, NSC 125176, 14725-1, PA 114B, RP 12535. Grades: ≥ 95%. CAS No. 3131-3-1. Molecular formula: C45H54N8O10. Mole weight: 866.96. BOC Sciences
Virginiamycin B Virginiamycin B is a depsipeptide antibiotic co-produced with ostreogrycin A and used as a synergistic mixture. Virginiamycin B, also known as ostreogrycin B and streptogramin B among other synonyms, was discovered independently and named by several groups leading to considerable confusion in the literature. Viriginiamycin B acts as a synergist binding to the conformational change in the peptidyl transferase centre of the 50S ribosome induced by ostreogrycin A. Group: Biochemicals. Grades: Highly Purified. CAS No. 3131-3-1. Pack Sizes: 5mg. US Biological Life Sciences. USBiological 3
Worldwide
Virginiamycin Complex Virginiamycin complex is defined as a mixture of 75% virginamycin M1 (ostreogrycin A) and 25% virginiamycin S1 and the less abundant S analogs. As the two major components have quite different solubilities these proportions are not readily achieved or used. The individual components are isolated and re-combined to provide the defined components of virginiamycin complex. The structure composition of the complex is important as Virginiamycin S1 acts a synergist, binding to the conformational change of the peptidyl transferase center of the 50S ribosome induced by ostreogrycin A. Group: Biochemicals. Alternative Names: Cebin V, Eskalin V, Eskamicin, Stafac, Stephylomycin, Mikamycin, Ostreogrycin, Patricin, Pristinamycin, Streptogramin, Vernamycin. Grades: Highly Purified. CAS No. 11006-76-1. Pack Sizes: 5mg. US Biological Life Sciences. USBiological 3
Worldwide
Virginiamycin M1 Virginiamycin M1 (Pristinamycin IIA; Ostreogrycin A), produced by Streptomyces virginiae , is an polyunsaturated macrocyclic lactone antibiotic and acts as a component of Virginiamycin (HY-112665) [1]. Virginiamycin M1 alone is against Staphylococcus aureus with a MIC of 0.25 μg/mL. Uses: Scientific research. Group: Natural products. Alternative Names: Pristinamycin IIA; Ostreogrycin A. CAS No. 21411-53-0. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-N6686. MedChemExpress MCE

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