A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
Pregnenolone. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 3β-Hydroxy-pregn-5-ene-20-one. Product Category: Steroidal Compounds. Appearance: Powder. CAS No. 145-13-1. Molecular formula: C21H32O2. Mole weight: 316.48. Purity: 0.98. IUPACName: 1-[(3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone. Canonical SMILES: CC(=O)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)O)C)C. Density: 1.038 g/ml. Product ID: ACM145131. Alfa Chemistry ISO 9001:2015 Certified.
Pregnenolone 16α-carbonitrile
Pregnenolone 16α-carbonitrile is an orally active prototypical and effective rodent-PXR activator. Pregnenolone 16α-carbonitrile, a synthetic steroid, induces cytochrome P450 3A expression. Pregnenolone 16α-carbonitrile exhibits increased resistance to subsequent stressful insults [1] [2] [3]. Uses: Scientific research. Group: Signaling pathways. CAS No. 1434-54-4. Pack Sizes: 10 mM * 1 mL; 25 mg; 50 mg; 100 mg. Product ID: HY-131723.
Pregnenolone-16-ene acetate oxime
Pregnenolone-16-ene acetate oxime. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 16-dehydropregnenoloneacetateoxime*crystalline;3-Hydroxy-20-oximinopregna-5,16-dien-20-one3-acetate;16-DEHYDROPREGNENOLONE ACETATE OXIME;3-BETA-HYDROXY-5,16-PREGNADIEN-20-ONE ACETATE OXIME;5,16-PREGNADIEN-3-BETA-OL-20-ONE ACETATE, 20-OXIME;5,16-PREGNADIE. Product Category: Steroidal Compounds. CAS No. 2174-13-2. Molecular formula: C23H33NO3. Mole weight: 371.51. Purity: 0.95. IUPACName: [(3S,8R,9S,10R,13S,14S)-17-[(E)-N-hydroxy-C-methylcarbonimidoyl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15-decahydro-1H-cyclopenta[a]phenanthren-3-yl]acetate. Canonical SMILES: CC(=NO)C1=CCC2C1(CCC3C2CC=C4C3(CCC(C4)OC(=O)C)C)C. Density: 1.23g/cm³. ECNumber: 218-530-8. Product ID: ACM2174132. Alfa Chemistry ISO 9001:2015 Certified. Categories: 23549-24-8.
Pregnenolone-[17alpha,21,21,21-d4]
Pregnenolone-[17alpha,21,21,21-d4] is a labelled version of Pregnenolone. Pregnenolone is an endogenous steroid hormone for inhibition of M1 receptor- and M3 receptor-mediated currents with IC50 of 11.4 μM and 6.0 μM, respectively. Synonyms: (3β)-3-Hydroxy-pregn-5-en-20-one-d4; (3β)-3-Hydroxypregn-5-en-20-one-d4; 5-Pregnenolone-d4; Arthenolone-d4; Bina-Skin-d4; Enelone-d4; NSC 1616-d4; Pregnolon-d4; Prenolon-d4; Regnosone-d4; Skinostelon-d4. CAS No. 61574-54-7. Molecular formula: C21H28D4O2. Mole weight: 320.50.
Pregnenolone-20,21-13C2-16,16-d2
?98 atom %, ?98% (CP). Group: Fluorescence/luminescence spectroscopy.
Pregnenolone-20,21-13C2-16,16-d2 sulfate sodium salt
?98 atom %, 98% (CP). Group: Fluorescence/luminescence spectroscopy.
Pregnenolone-2,2,4,4-d4
?98 atom % D, ?95% (CP). Group: Fluorescence/luminescence spectroscopy.
Pregnenolone-3-sulfate Sodium Salt. Group: Biochemicals. Alternative Names: 3-(Sulfooxy)pregn-5-en-20-one Sodium Salt (1:1); (3 β-3-(Sulfooxy)pregn-5-en-20-one Sodium Salt; 3 β-Hydroxypregn-5-en-20-one Hydrogen Sulfate Sodium Salt; Pregnenolone Sulfate Sodium Salt. Grades: Highly Purified. CAS No. 1852-38-6. Pack Sizes: 25mg. Molecular Formula: C21H31NaO5S, Molecular Weight: 418.52. US Biological Life Sciences.
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Pregnenolone acetate
Pregnenolone acetate. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Previsone; Enescorb; Pregnenolone Acetate; Sharmone; Pregnenolone-3-acetate; ACETOXYPREGNENOLONE; 3β-Acetoxy-5-pregnen-20-one; 5-Pregnen-3β-ol-20-one acetate; Artivis; Pregenolone acetate. Product Category: Steroidal Compounds. Appearance: white to light yellow crystalline powder. CAS No. 1778-02-5. Molecular formula: C23H34O3. Mole weight: 358.51. Purity: 0.99. IUPACName: [(3S,8S,9S,10R,13S,14S,17S)-17-acetyl-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl]acetate. Canonical SMILES: CC(=O)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)OC(=O)C)C)C. Density: 1.09 g/cm³. ECNumber: 217-212-6. Product ID: ACM1778025. Alfa Chemistry ISO 9001:2015 Certified.
Pregnenolone Acetate
Pregnenolone derivative, a steroid hormone involved in the steroidogenesis of progesterone, mineralocorticoids, glucocorticoids, androgens, and estrogens. Group: Biochemicals. Alternative Names: (3 β)-3-(Acetyloxy)-pregn-5-en-20-one; 3 β-Acetoxy-5-pregnen-20-one; 3 β-Acetoxy-Δ5-pregnen-20-one; 3 β-Hydroxypregn-5-en-20-one Acetate; 3 β-Pregn-5-enol-20-one Acetate; 5-Pregnen-3 β-ol-20-one Acetate; 5-Pregnene-3 β-acetoxy-20-one; Antofin; Artivis; Enescorb; NSC 64827; Pregenolone Acetate; Pregnenolone Acetate; Pregnenolone-3-acetate; Previsone; Sharmone. Grades: Highly Purified. CAS No. 1778-02-5. Pack Sizes: 25mg. US Biological Life Sciences.
Worldwide
Pregnenolone-d4
Pregnenolone-d4. Group: Biochemicals. Alternative Names: (3 β)-. Grades: Highly Purified. Pack Sizes: 10mg. Molecular Formula: C21H28D4O2, Molecular Weight: 320.27. US Biological Life Sciences.
Worldwide
Pregnenolone monosulfate sodium
Pregnenolone monosulfate sodium (3?-Hydroxy-5-pregnen-20-one monosulfate sodium) is a powerful neurosteroid, the main precursor of various steroid hormones including steroid ketones. Pregnenolone monosulfate sodium acts as a signaling-specific inhibitor of cannabinoid CB1 receptor, inhibits the effects of tetrahydrocannabinol (THC) that are mediated by the CB1 receptors. Pregnenolone monosulfate sodium can protect the brain from cannabis intoxication[1][2]. Pregnenolone monosulfate sodium is also a TRPM3 channel activator, and also can weakly activate TRPM1 channels[3]. Uses: Scientific research. Group: Natural products. Alternative Names: 3?-Hydroxy-5-pregnen-20-one monosulfate sodium. CAS No. 1852-38-6. Pack Sizes: 10 mM * 1 mL; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-110189.
Pregnenolone (Standard)
Pregnenolone (Standard) is the analytical standard of Pregnenolone. This product is intended for research and analytical applications. Pregnenolone (3β-Hydroxy-5-pregnen-20-one) is a powerful neurosteroid, the main precursor of various steroid hormones including steroid ketones. Pregnenolone acts as a signaling-specific inhibitor of cannabinoid CB1 receptor , inhibits the effects of tetrahydrocannabinol (THC) that are mediated by the CB1 receptors. Pregnenolone can protect the brain from cannabis intoxication [1] [2]. Pregnenolone is also a TRPM3 channel activator, and also can weakly activate TRPM1 channels [3]. Uses: Scientific research. Group: Natural products. Alternative Names: 3β-Hydroxy-5-pregnen-20-one (Standard). CAS No. 145-13-1. Pack Sizes: 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-B0151R.
Pregnenolone sulfate sodium salt
Pregnenolone sulfate sodium salt. Uses: Designed for use in research and industrial production. Additional or Alternative Names: PREGNENOLONE SULFATE SODIUM;PREGNENOLONE SULFATE SODIUM SALT;PREGNENOLONE SULPHATE, SODIUM SALT;3B-HYDROXY-5-PREGNEN-20-ONE 3-SULFATE SODIUM SALT;3-BETA-HYDROXY-5-PREGNEN-20-ONE 3-SULPHATE, SODIUM SALT;3-HYDROXYPREGN-5-EN-20-ONE SULFATE SODIUM SALT;5-PRE. Product Category: Steroidal Compounds. CAS No. 1852-38-6. Molecular formula: C21H31NaO5S. Mole weight: 418.52. Purity: 0.95. IUPACName: sodium;[(3S,8S,9S,10R,13S,14S,17S)-17-acetyl-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl]sulfate. Canonical SMILES: CC(=O)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)OS(=O)(=O)[O-])C)C.[Na+]. Product ID: ACM1852386. Alfa Chemistry ISO 9001:2015 Certified.
Prehelminthosporol
Prehelminthosporol is a phytotoxin produced by Bipolaris sorokiniana. Synonyms: 4,8-Methano-1H-2-benzopyran-3-ol, octahydro-8-methyl-9-methylene-5-(1-methylethyl)-; Octahydro-8-methyl-9-methylene-5-isopropyl-4,8-methano-1H-2-benzopyran-3-ol; 8-Methyl-9-Methylidene-5-(Propan-2-yl)Octahydro-1H-4,8-Methano-2-Benzopyran-3-ol. Grade: 97.5%. CAS No. 1619-13-2. Molecular formula: C15H24O2. Mole weight: 236.35.
Prehelminthosporolactone
Prehelminthosporolactone is a phytotoxin produced by Bipolaris sp. Synonyms: Prehelminthosporol lactone; 4,8-Methano-3H-2-benzopyran-3-one, octahydro-8-methyl-9-methylene-5-(1-methylethyl)-, (4R,4aS,5R,8R,8aS)-; 4,8-Methano-3H-2-benzopyran-3-one, octahydro-8-methyl-9-methylene-5-(1-methylethyl)-, [4R-(4α,4aβ,5α,8α,8aβ)]-; (4R,4aS,5R,8R,8aS)-Octahydro-8-methyl-9-methylene-5-(1-methylethyl)-4,8-methano-3H-2-benzopyran-3-one. Grade: 97.0%. CAS No. 118101-72-7. Molecular formula: C15H22O2. Mole weight: 234.33.
Preladenant
Preladenant. Group: Biochemicals. Alternative Names: 2-(2-Furanyl)-7-[2-[4-[4-(2-methoxyethoxy)phenyl]-1-piperazinyl]ethyl]-7H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-amine; Sch 420814. Grades: Highly Purified. CAS No. 377727-87-2. Pack Sizes: 10mg, 25mg, 50mg, 100mg, 250mg. Molecular Formula: C25H29N9O3. US Biological Life Sciences.
Worldwide
Preladenant
Preladenant is a potent and competitive antagonist of the human adenosine A2A receptor with a K i of 1.1 nM and has over 1000-fold selectivity over other adenosine receptors. Uses: Scientific research. Group: Signaling pathways. Alternative Names: SCH-420814. CAS No. 377727-87-2. Pack Sizes: 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-10889.
Premarin
Premarin. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Estrone hydrogen sulfate. Product Category: Heterocyclic Organic Compound. Appearance: Solid. CAS No. 481-97-0. Molecular formula: C18H22O5S. Mole weight: 350.43. Purity: 0.98. IUPACName: [(8R,9S,13S,14S)-13-Methyl-17-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-yl] hydrogen sulfate. Canonical SMILES: CC12CCC3C(C1CCC2=O)CCC4=C3C=CC(=C4)OS(=O)(=O)O. Density: 1.349±0.06 g/cm³. ECNumber: 207-575-9. Product ID: ACM481970. Alfa Chemistry ISO 9001:2015 Certified.
Premium Chicken Fat Liquid with Rosemary Extract
Premium Chicken Fat Liquid with Rosemary Extract.
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premnaspirodiene oxygenase
A heme-thiolate protein (P-450). The enzyme from the plant Hyoscymus muticus also hydroxylates valencene at C-2 to give the α-hydroxy compound, nootkatol, and this is converted into nootkatone. 5-Epiaristolochene and epieremophilene are hydroxylated at C-2 to give a 2β-hydroxy derivative which is not further oxidized. Group: Enzymes. Synonyms: HPO; Hyoscymus muticus premnaspirodiene oxygenase. Enzyme Commission Number: EC 1.14.13.121. 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-0722; premnaspirodiene oxygenase; EC 1.14.13.121; HPO; Hyoscymus muticus premnaspirodiene oxygenase. Cat No: EXWM-0722.
Pre-mRNA Splicing Inhibitor, Isoginkgetin
A cell-permeable, naturally isolated Ginkgo biloba biflavanoid that acts as a general pre-mRNA splicing inhibitor (ICmax=50uM in splicing assays using HeLa nuclear extract) by blocking the spliceosome-meidated splicing process at the prespliceosome/A complex stage. Isoginkgetin treatment is shown to result in growth arrest in HEK293-derived cultures in a reversible manner without affecting cell viability (33uM for 24h).217696 is a cell-permeable inhibitor of pre-mRNA splicing. Blocks spliceosome-mediated splicing process at the pre-spliceosome/A complex stage. Group: Biochemicals. Alternative Names: 8-(5-(5,7-Dihydroxy-4-oxo-4H-chromen-2-yl)-2-methoxyphenyl)-5,7-dihydroxy-2-(4-methoxyphenyl)-4H-chromen-4-one. Grades: Highly Purified. CAS No. 548-19-6. Pack Sizes: 10mg. Molecular Formula: C??H??O??, Molecular Weight: 566.5. US Biological Life Sciences.
Worldwide
Prenalterol
Prenalterol. Group: Biochemicals. Alternative Names: 4-[ (2S) -2-Hydroxy-3-[ (1-methylethyl) amino]propoxy]phenol; (-)-Prenalterol; (S)-Prenalterol. Grades: Highly Purified. CAS No. 57526-81-5. Pack Sizes: 5mg, 10mg, 25mg, 50mg, 100mg. Molecular Formula: C12H19NO3. US Biological Life Sciences.
Worldwide
Prenalterol
Prenalterol is a selective β1-adrenergic receptor agonist. Prenalterol has no effect on gut smooth muscle contractile activity. Prenalterol can be used for researching cardiovascular disease [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 57526-81-5. Pack Sizes: 5 mg; 10 mg. Product ID: HY-112071.
Prenyl acetate
analytical standard. Group: Flavor and fragrance standards.
Vasodilator (coronary). Group: Biochemicals. Alternative Names: N- (1-Methyl-2-phenylethyl) - γ -phenyl Benzene propanamine; N-(3,3-Diphenylpropyl)-α-methylphenethylamine; DL-Prenylamine; Elecor; SAN 13-194; Sandoz 13-194; Segontin. Grades: Highly Purified. CAS No. 390-64-7. Pack Sizes: 50mg. US Biological Life Sciences.
Worldwide
prenylcysteine oxidase
A flavoprotein (FAD). Cleaves the thioether bond of S-prenyl-L-cysteines, such as S-farnesylcysteine and S-geranylgeranylcysteine. N-Acetyl-prenylcysteine and prenylcysteinyl peptides are not substrates. May represent the final step in the degradation of prenylated proteins in mammalian tissues. Originally thought to be a simple lyase so it had been classified as EC 4.4.1.18. Group: Enzymes. Synonyms: prenylcysteine lyase. Enzyme Commission Number: EC 1.8.3.5. CAS No. 196717-99-4. 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-1662; prenylcysteine oxidase; EC 1.8.3.5; 196717-99-4; prenylcysteine lyase. Cat No: EXWM-1662.
prenyl-diphosphatase
Farnesyl diphosphate is the best substrate tested to date. Group: Enzymes. Synonyms: prenyl-pyrophosphatase; prenol pyrophosphatase; prenylphosphatase. Enzyme Commission Number: EC 3.1.7.1. CAS No. 37288-33-8. 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-3760; prenyl-diphosphatase; EC 3.1.7.1; 37288-33-8; prenyl-pyrophosphatase; prenol pyrophosphatase; prenylphosphatase. Cat No: EXWM-3760.
prephenate decarboxylase
The enzyme, characterized from the bacterium Bacillus subtilis, is involved in the biosynthesis of the nonribosomally synthesized dipeptide antibiotic bacilysin, composed of L-alanine and L-anticapsin. The enzyme isomerizes only the pro-R double bond in prephenate. Group: Enzymes. Synonyms: BacA; AerD; SalX; non-aromatizing prephenate decarboxylase. Enzyme Commission Number: EC 4.1.1.100. 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-4753; prephenate decarboxylase; EC 4.1.1.100; BacA; AerD; SalX; non-aromatizing prephenate decarboxylase. Cat No: EXWM-4753.
prephenate dehydratase
This enzyme in the enteric bacteria also possesses chorismate mutase (EC 5.4.99.5) activity, and converts chorismate into prephenate. Group: Enzymes. Synonyms: prephenate hydro-lyase (decarboxylating). Enzyme Commission Number: EC 4.2.1.51. CAS No. 9044-88-6. 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-5041; prephenate dehydratase; EC 4.2.1.51; 9044-88-6; prephenate hydro-lyase (decarboxylating). Cat No: EXWM-5041.
prephenate dehydrogenase
This enzyme in the enteric bacteria also possesses chorismate mutase activity (EC 5.4.99.5 chorismate mutase) and converts chorismate into prephenate. Group: Enzymes. Synonyms: hydroxyphenylpyruvate synthase; chorismate mutase-prephenate dehydrogenase. Enzyme Commission Number: EC 1.3.1.12. CAS No. 9044-92-2. 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-1286; prephenate dehydrogenase; EC 1.3.1.12; 9044-92-2; hydroxyphenylpyruvate synthase; chorismate mutase-prephenate dehydrogenase. Cat No: EXWM-1286.
prephenate dehydrogenase (NADP+)
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is prephenate:NADP+ oxidoreductase (decarboxylating). Other names in common use include prephenate dehydrogenase, prephenate (nicotinamide adenine dinucleotide phosphate), dehydrogenase, and prephenate dehydrogenase (NADP). This enzyme participates in phenylalanine, tyrosine and tryptophan biosynthesis. Group: Enzymes. Synonyms: prephenate dehydrogenase; prephenate (nicotinamide adenine dinucleotide phosphate) dehydrogenase; prephenate dehydrogenase (NADP). Enzyme Commission Number: EC 1.3.1.13. CAS No. 37251-11-9. 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-1287; prephenate dehydrogenase (NADP+); EC 1.3.1.13; 37251-11-9; prephenate dehydrogenase; prephenate (nicotinamide adenine dinucleotide phosphate) dehydrogenase; prephenate dehydrogenase (NADP). Cat No: EXWM-1287.
prepilin peptidase
Many species of bacteria carry pili on their cell surfaces. These are virulence determinants in pathogenic strains, and are assembled biosynthetically from type IV prepilin subunits. Before assembly, the prepilin molecules require proteolytic processing, which is done by the prepilin peptidase. Prepilin peptidase and its homologues play a central role not only in type IV pilus biogenesis but also in transport of macromolecules across cell membranes. Although both peptide-bond hydrolysis and N-methylation are catalysed by the same molecule, the methylation can be inhibited without affecting peptidase activity, and it is believed that the enzyme has two separate catalytic sites. Type example of peptidase family A24. Group: Enzymes. Enzyme Commission Number: EC 3.4.23.43. CAS No. 202833-59-8. 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-4280; prepilin peptidase; EC 3.4.23.43; 202833-59-8. Cat No: EXWM-4280.
Prepreg
Prepreg. Group: Polymers.
Preproalytesin-MA
Preproalytesin-MA is an antimicrobial peptide found in Alytes maurus, and has antimicrobial activity. Synonyms: Thr-Gln-Trp-Ala-Val-Gly-His-Leu-Met-Gly-Lys-Lys-Ser. Grade: ≥95%. Molecular formula: C64H103N19O17S. Mole weight: 1442.70.
Prepro-Atrial Natriuretic Factor (26-55) (human)
Prepro-Atrial Natriuretic Factor (26-55) (human) is a polypeptide that increases renal cortical and medullary cyclic GMP levels. Prepro-Atrial Natriuretic Factor (26-55) (human) increases renal guanylate cyclase activity [1]. Uses: Scientific research. Group: Peptides. CAS No. 112160-82-4. Pack Sizes: 1 mg; 5 mg; 10 mg. Product ID: HY-P4811.
Prepro-beta-defensin 1 is an antimicrobial peptide found in Sus scrofa, and has antimicrobial activity. Grade: >98%.
Preprobradykinin
Preprobradykinin is an antimicrobial peptide found in Rana sakuraii (Japanese brown frog), and has antimicrobial activity. Synonyms: Arg-Leu-Pro-Pro-Gly-Phe-Thr-Pro-Trp-Arg-Ile-Ala-Pro-Ala-Ile-Val. Grade: ≥96%. Molecular formula: C87H135N23O18. Mole weight: 1791.18.
Preprochensinin-1CEc
Preprochensinin-1CEc is an antimicrobial peptide found in Rana chensinensis (Chinese brown frog), and has antimicrobial activity. Synonyms: Gly-Val-Ile-Lys-Leu-Ser-Leu-Cys-Glu-Glu-Glu-Arg-Asn-Ala-Asp-Glu-Glu-Lys-Arg-Arg-Asp-Asp-Pro-Asp-Glu-Met-Asp-Val-Glu-Val-Glu-Lys-Arg. Grade: ≥95%. Molecular formula: C160H267N49O62S2. Mole weight: 3933.30.
Preprodamicornin
Preprodamicornin is an antimicrobial peptide found in Pocillopora damicornis, and has antibacterial and antifungal activity. Grade: >98%.
Preprohepcidin
Preprohepcidin is an antimicrobial peptide found in Megalobrama amblycephala (Chinese blunt snout bream, Brema carp), and has antimicrobial activity. Grade: >98%.
Riteau et al. used rabbit antiserum to perform immunofluorescence analysis on the Prepro-Killer Cell Immunoglobulin-Like Receptor 3DL3 (23-31) corresponding to the N-terminal sequence of KIR2DL4. It did not differ between the p49 and KIR2DL4 receptor. Synonyms: KIR3DL3 (23-31) (human); H-Val-Gly-Gly-Gln-Asp-Lys-Pro-Phe-Leu-OH. Grade: ≥95%. Molecular formula: C44H69N11O13. Mole weight: 960.09.
Prepromelittin-related peptide
Prepromelittin-related peptide is an antimicrobial peptide found in Rana sakuraii, and has antibacterial and antifungal activity. Synonyms: prMRP. Grade: >98%.
Prepropalustrin-2CE
Prepropalustrin-2CE is an antimicrobial peptide found in Rana chensinensis (Chinese brown frog), and has antimicrobial activity. Synonyms: Thr-Leu-Lys-Lys-Ser-Met-Leu-Leu-Leu-Phe-Phe-Leu-Gly-Thr-Ile-Ser-Leu-Ser-Leu-Cys. Grade: ≥96%. Molecular formula: C105H178N22O26S2. Mole weight: 2228.83.
Preprotemporin-1SKa
Preprotemporin-1SKa is an antimicrobial peptide found in Rana sakuraii (Japanese brown frog), and has antibacterial activity against gram-positive bacterium S.aureus (MIC=25 microM) and gram-negative bacterium E.coli (MIC=50 microM), and has antifungal activity against C.albicans (MIC=50 microM). Synonyms: Phe-Leu-Pro-Val-Ile-Leu-Pro-Val-Ile-Gly-Lys-Leu-Leu-Asn-Gly-Ile-Leu-Gly-Lys. Grade: ≥96%. Molecular formula: C99H170N22O21. Mole weight: 2004.58.
Preprotemporin-1SKd
Preprotemporin-1SKa is an antimicrobial peptide found in Rana sakuraii (Japanese brown frog), and has antimicrobial activity. Synonyms: Phe-Leu-Pro-Met-Leu-Ala-Lys-Leu-Leu-Ser-Gly-Phe-Leu-Gly-Lys. Grade: ≥95%. Molecular formula: C80H131N17O17S. Mole weight: 1635.09.
Prepro VIP (111-122), human
It is the 111-122 amino acid fragment of prepro-vasoactive intestinal polypeptide (VIP). VIP is present in the peripheral and central nervous system as a non-adrenergic, non-cholinergic neurotransmitter or neuromodulator. Synonyms: PHM/VIP (Spacer Peptide); Preprovasoactive intestinal peptide (111-122); Val-Ser-Ser-Asn-Ile-Ser-Glu-Asp-Pro-Val-Pro-Val; L-valyl-L-seryl-L-seryl-L-asparagyl-L-isoleucyl-L-seryl-L-alpha-glutamyl-L-alpha-aspartyl-L-prolyl-L-valyl-L-prolyl-L-valine; N-(1-(N-(1-(N-(N-(N-(N-(N2-(N-(N-L-Valyl-L-seryl)-L-seryl)-L-asparginyl)-L-isoleucyl)-L-seryl)-L-alpha-glutamyl)-L-alpha-aspartyl)-L-propyl)-L-valyl)-L-propyl)-L-valine. Grade: 95%. CAS No. 123025-94-5. Molecular formula: C53H87N13O21. Mole weight: 1242.33.
Prepro VIP (111-122), human acetate
Prepro VIP (111-122), human acetate is the 111-122 amino acid fragment of prepro-vasoactive intestinal polypeptide (VIP). VIP is present in the peripheral and central nervous system as a non-adrenergic, non-cholinergic neurotransmitter or neuromodulator. Synonyms: H-Val-Ser-Ser-Asn-Ile-Ser-Glu-Asp-Pro-Val-Pro-Val-OH.CH3CO2H; L-Valine, N-[1-[N-[1-[N-[N-[N-[N-[N2-[N-(N-L-valyl-L-seryl)-L-seryl]-L-asparaginyl]-L-isoleucyl]-L-seryl]-L-α-glutamyl]-L-α-aspartyl]-L-prolyl]-L-valyl]-L-prolyl]-, acetate salt (1:1); L-Valyl-L-seryl-L-seryl-L-asparaginyl-L-isoleucyl-L-seryl-L-α-glutamyl-L-α-aspartyl-L-prolyl-L-valyl-L-prolyl-L-valine acetate salt. Grade: ≥95%. CAS No. 2918768-00-8. Molecular formula: C53H87N13O21.C2H4O2. Mole weight: 1302.39.
Prepro VIP (81-122), human
It is the 81-122 amino acid fragment of prepro-vasoactive intestinal polypeptide (VIP). Peptide histidine valine 42 (PHV-42) has been specified to precisely correspond to Prepro VIP (81-122), which reduces the force and frequency of spontaneous uterine contractions in isolated rats. Synonyms: His-Ala-Asp-Gly-Val-Phe-Thr-Ser-Asp-Phe-Ser-Lys-Leu-Leu-Gly-Gln-Leu-Ser-Ala-Lys-Lys-Tyr-Leu-Glu-Ser-Leu-Met-Gly-Lys-Arg-Val-Ser-Ser-Asn-Ile-Ser-Glu-Asp-Pro-Val-Pro-Val; L-histidyl-L-alanyl-L-alpha-aspartyl-glycyl-L-valyl-L-phenylalanyl-L-threonyl-L-seryl-L-alpha-aspartyl-L-phenylalanyl-L-seryl-L-lysyl-L-leucyl-L-leucyl-glycyl-L-glutaminyl-L-leucyl-L-seryl-L-alanyl-L-lysyl-L-lysyl-L-tyrosyl-L-leucyl-L-alpha-glutamyl-L-seryl-L-leucyl-L-methionyl-glycyl-L-lysyl-L-arginyl-L-valyl-L-seryl-L-seryl-L-asparagyl-L-isoleucyl-L-seryl-L-alpha-glutamyl-L-alpha-aspartyl-L-prolyl-L-valyl-L-prolyl-L-valine; peptide histidine valine 42; Preprovasoactive intestinal peptide (81-122); Prepro-vip (81-122). Grade: >98%. CAS No. 111366-38-2. Molecular formula: C202H325N53O64S. Mole weight: 4552.13.
Prepro-von Willebrand factor (641-650) (bovine)
Prepro-von Willebrand factor (641-650) (bovine), derived from the von Willebrand factor, has an increased affinity for collagen and promotes wound healing. It binds bovine collagen type I with an apparent Kd of 100 μM. Synonyms: pp-vWF (641-650); H-Trp-Arg-Glu-Pro-Ser-Phe-Cys-Ala-Leu-Ser-OH; L-Serine, L-tryptophyl-L-arginyl-L-α-glutamyl-L-prolyl-L-seryl-L-phenylalanyl-L-cysteinyl-L-alanyl-L-leucyl-. Grade: ≥95%. CAS No. 143470-36-4. Molecular formula: C54H78N14O15S. Mole weight: 1195.35.
Preptin (rat)
Preptin, a 34-amino acid peptide hormone, is co-secreted with insulin in β-cells of the pancreas in response to glucose stimulation. Preptin is osteogenic both in vitro and in vivo and may act synergistically with other β-cell hormones insulin and amylin to stimulate bone formation in hyperinsulinemic states such as obesity. Synonyms: H-Asp-Val-Ser-Thr-Ser-Gln-Ala-Val-Leu-Pro-Asp-Asp-Phe-Pro-Arg-Tyr-Pro-Val-Gly-Lys-Phe-Phe-Lys-Phe-Asp-Thr-Trp-Arg-Gln-Ser-Ala-Gly-Arg-Leu-OH; L-alpha-aspartyl-L-valyl-L-seryl-L-threonyl-L-seryl-L-glutaminyl-L-alanyl-L-valyl-L-leucyl-L-prolyl-L-alpha-aspartyl-L-alpha-aspartyl-L-phenylalanyl-L-prolyl-L-arginyl-L-tyrosyl-L-prolyl-L-valyl-glycyl-L-lysyl-L-phenylalanyl-L-phenylalanyl-L-lysyl-L-phenylalanyl-L-alpha-aspartyl-L-threonyl-L-tryptophyl-L-arginyl-L-glutaminyl-L-seryl-L-alanyl-glycyl-L-arginyl-L-leucine. Grade: ≥95%. CAS No. 315197-73-0. Molecular formula: C181H268N48O51. Mole weight: 3932.41.
preQ1 dihydrochloride
preQ1 dihydrochloride is a modified, guanine-derived nucleobase and a precursor of Queuine (HY-N10574) biosynthesis. preQ1 dihydrochloride binds to the aptamer of PreQ1 riboswitch with high affinity [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 86694-45-3. Pack Sizes: 1 mg; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-115642.
The reaction occurs in the reverse direction. This enzyme catalyses one of the early steps in the synthesis of queuosine (Q-tRNA), and is followed by the action of EC 2.4.2.29, queuine tRNA-ribosyltransferase. Queuosine is found in the wobble position of tRNAGUN in Eukarya and Bacteria and is thought to be involved in translational modulation. The enzyme is not a GTP cyclohydrolase, as was thought previously based on sequence-homology studies. Group: Enzymes. Synonyms: YkvM; QueF; preQ0 reductase; preQ0 oxidoreductase; 7-cyano-7-deazaguanine reductase; queuine synthase (incorrect as queuine is not the product); queuine:NADP+ oxidoreductase (incorrect as queuine is not the product). Enzyme Commission Number: EC 1.7.1.13. CAS No. 1256460-80-6. 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-1606; preQ1 synthase; EC 1.7.1.13; 1256460-80-6; YkvM; QueF; preQ0 reductase; preQ0 oxidoreductase; 7-cyano-7-deazaguanine reductase; queuine synthase (incorrect as queuine is not the product); queuine:NADP+ oxidoreductase (incorrect as queuine is not the product). Cat No: EXWM-1606.
Prerubialatin
Prerubialatin is a natural compound isolated from the herbs of Rubia cordifolia, being a precursor of rubialatins A and B. Synonyms: Prerubialatin; 1667718-89-9. CAS No. 1667718-89-9. Molecular formula: C27H20O7. Mole weight: 456.45.
Presatovir
Presatovir (GS-5806) is an orally bioavailable RSV fusion inhibitor with a mean EC 50 value of 0.43 nM [1]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: GS-5806. CAS No. 1353625-73-6. Pack Sizes: 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-16727.
Carbon black oil appears as a dark colored liquid with a petroleum-like odor. Less dense than water and insoluble in water. Vapors heavier than air.;Carbon, activated is a black grains that have been treated to improve absorptive ability. May heat spontaneously if not properly cooled after manufacture.;Carbon, animal or vegetable origin appears as a black powder or granular mixed with a tar or starch and water binder pressed into regular lumps or briquettes. Heats slowly and ignites in air especially if wet.;Graphite (natural) appears as a mineral form of the element carbon. Hexagonal crystals or thin leaf-like layers. Steel-gray to black with a metallic luster and a greasy feel. An electrical conductor. Used for high-temperature crucibles, as a lubricant and in "lead" pencils.;DryPowder; DryPowder, Liquid; DryPowder, PelletsLargeCrystals; DryPowder, PelletsLargeCrystals, WetSolid, OtherSolid, Liquid; DryPowder, WetSolid, Liquid; Liquid; OtherSolid; OtherSolid, GasVapor, Liquid; PelletsLargeCrystals; PelletsLargeCrystals, OtherSolid, Liquid; WetSolid; WetSolid, Liquid;OtherSolid; PelletsLargeCrystals;DryPowder; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, OtherSolid; WetSolid;DryPowder; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals; DryPowder, WetSolid; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, Other
Preservatives
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presilphiperfolanol synthase
Requires Mg2+. Presilphiperfolan-8β-ol is the precursor of botrydial, a phytotoxic sesquiterpene metabolite secreted by the fungus Botryotinia fuckeliana (Botrytis cinerea), the causal agent of gray mold disease in plants. Group: Enzymes. Synonyms: BcBOT2, CND15. Enzyme Commission Number: EC 4.2.3.74. 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-5236; presilphiperfolanol synthase; EC 4.2.3.74; BcBOT2, CND15. Cat No: EXWM-5236.
presqualene diphosphate synthase
Isolated from the green alga Botryococcus braunii BOT22. Unlike EC 2.5.1.21, squalene synthase, where squalene is formed in one step from farnesyl diphosphate, in this alga the intermediate presqualene diphosphate is generated and released by this enzyme. This compound is then converted into either squalene (by EC 1.3.1.96, Botryococcus squalene synthase) or botryococcene (EC 1.3.1.97, botryococcene synthase). Group: Enzymes. Synonyms: SSL-1 (gene name); hpnD (gene name). Enzyme Commission Number: EC 2.5.1.103. 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-2719; presqualene diphosphate synthase; EC 2.5.1.103; SSL-1 (gene name); hpnD (gene name). Cat No: EXWM-2719.
Pressinoic Acid
Pressinoic Acid is a synthetic hexapeptide with strong corticotrophin-releasing activity. It is also an oxytocin inhibitor and induces maternal behavior. Synonyms: Cys-Tyr-Phe-Gln-Asn-Cys (Disulfide bridge: Cys1-Cys6); L-cysteinyl-L-tyrosyl-L-phenylalanyl-L-glutaminyl-L-asparagyl-L-cysteine (1->6)-disulfide; 1-6-Oxytocin, 3-L-phenylalanine-. Grade: >95%. CAS No. 35748-51-7. Molecular formula: C33H42N8O10S2. Mole weight: 774.86.
Pretilachlor
Pretilachlor is a herbicide used to control the the most common weeds found in paddy rice crops [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 51218-49-6. Pack Sizes: 10 mM * 1 mL; 100 mg. Product ID: HY-B2035.