A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
L-Serine N-carboxyanhydride. Group: Biochemicals. Alternative Names: (4S)-4-(Hydroxymethyl)-2,5-oxazolidinedione; (S)-4-(Hydroxymethyl)-2,5-oxazolidinedione; L-4-(Hydroxymethyl)-2,5-oxazolidinedione. Grades: Highly Purified. CAS No. 33043-54-8. Pack Sizes: 50mg, 100mg, 250mg, 500mg, 1g. Molecular Formula: C4H5NO4. US Biological Life Sciences.
Worldwide
L-Serine-N-Fmoc, O-tert-butyl ether-[1-13C]
L-Serine-N-Fmoc, O-tert-butyl ether-[1-13C] is a 13C labelled L-serine derivative. L-Serine-N-Fmoc, O-tert-butyl ether-[1-13C] is an important intermediate for synthesis. Synonyms: Fmoc-O-tert-butyl-L-serine-1-13C; Fmoc-Ser(t-Bu)-OH-1-13C; Fmoc-Ser(tBu)-OH-1-13C. Grade: 99% by CP; 98% atom 15N. Molecular formula: C21[13C]H25NO5. Mole weight: 384.43.
L-Serine-N-Fmoc, O-tert-butyl ether-[13C3,15N]
L-Serine-N-Fmoc, O-tert-butyl ether-[13C3,15N] is a labelled L-serine derivative, with both amino and hydroxyl groups protected. It can be readily used in labelled peptides synthesis. Synonyms: Fmoc-O-tert-butyl-L-serine-13C3,15N; Fmoc-Ser(t-Bu)-OH-13C3,15N; Fmoc-Ser(tBu)-13C3,15N. Grade: 98% by CP; 99% atom 13C; 99% atom 15N. Molecular formula: C19[13C]3H25[15N]O5. Mole weight: 387.41.
L-Serine,N-methyl-N-(phenylmethyl)-
L-Serine,N-methyl-N-(phenylmethyl)-. Uses: Designed for use in research and industrial production. Additional or Alternative Names: N-Benzyl-N-methyl-L-serine, BZL-N-ME-SER-OH, SureCN8797866, AGN-PC-00200L, CTK8G1658, 2-[benzyl(methyl)amino]-3-hydroxypropanoic acid, 201208-99-3. Product Category: Heterocyclic Organic Compound. CAS No. 201208-99-3. Molecular formula: C11H15NO3. Mole weight: 209.25. Purity: 0.96. IUPACName: 2-[benzyl(methyl)amino]-3-hydroxypropanoic acid. Canonical SMILES: CN(CC1=CC=CC=C1)C(CO)C(=O)O. Product ID: ACM201208993. Alfa Chemistry ISO 9001:2015 Certified.
L-Serine-N-T-Boc, O-Bz ether-[15N]
L-Serine-N-T-Boc, O-Bz ether-[15N] is a labelled L-serine derivative. L-Serine-N-T-Boc, O-Bz ether-[15N] is a labelled amino acid building block used in peptide synthesis. With a growing peptide drug market, the fast, reliable synthesis of peptides is of great importance. Synonyms: N-Boc-O-benzyl-L-serine-15N; Boc-O-benzyl-L-serine-15N; N-((1,1-dimethylethoxy)carbonyl)-O-(phenylmethyl)-L-serine-15N; Boc-Ser(Bzl)-OH-15N. Grade: 99% by CP; 98% atom 15N. Molecular formula: C15H21[15N]O5. Mole weight: 296.32.
This mammalian enzyme catalyses an exchange reaction in which the polar head group of phosphatidylethanolamine is replaced by L-serine. Group: Enzymes. Synonyms: phosphatidylserine synthase 2; serine-exchange enzyme II; PTDSS2 (gene name). Enzyme Commission Number: EC 2.7.8.29. 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-3328; L-serine-phosphatidylethanolamine phosphatidyltransferase; EC 2.7.8.29; phosphatidylserine synthase 2; serine-exchange enzyme II; PTDSS2 (gene name). Cat No: EXWM-3328.
L-Serine (Standard)
L-Serine (Standard) is the analytical standard of L-Serine. This product is intended for research and analytical applications. L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation. Uses: Scientific research. Group: Natural products. CAS No. 56-45-1. Pack Sizes: 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-N0650R.
L-Serine tert-butyl ester hydrochloride
L-Serine 1,1-Dimethylethyl Ester Hydrochloride is used in the synthesis of diabetes type 2 inhibitors. Also used in the synthesis of bifunctional and trifunctional chelating agents. Synonyms: L-Ser-OtBu HCl; L-β-Hydroxyalanine tert-butyl ester hydrochloride; (S)-tert-Butyl 2-amino-3-hydroxypropanoate hydrochloride; tert-butyl(2S)-2-amino-3-hydroxypropanoate hydrochloride. Grade: ≥ 99% (TLC). CAS No. 106402-41-9. Molecular formula: C7H15O3N·HCl. Mole weight: 197.62.
L-Serine tert-butyl ester hydrochloride
L-Serine tert-butyl ester hydrochloride. Group: Biochemicals. Alternative Names: L-Ser-OtBu·HCl; L-b-Hydroxyalanine tert-butyl ester hydrochloride. Grades: Highly Purified. CAS No. 106402-41-9. Pack Sizes: 1g, 2g, 5g, 10g, 25g. US Biological Life Sciences.
L-seryl-L-tyrosine 2-naphthylamide is a specific substrate for dipeptidyl aminopeptidase I (cathepsin C). Synonyms: H-Ser-Tyr-bNA; H-Ser-Tyr-βNA; Ser-Tyr beta-naphthylamide; L-Ser-L-Tyr 2-naphthylamide. Grade: 95%. CAS No. 24008-82-0. Molecular formula: C22H23N3O4. Mole weight: 393.44.
L-seryl-tRNASec selenium transferase
A pyridoxal 5'-phosphate enzyme identified in Escherichia coli. Recognises specifically tRNASec-species. Binding of tRNASec also occurs in the absence of the seryl group. 2-Aminoacryloyl-tRNA, bound to the enzyme as an imine with the pyridoxal phosphate, is an intermediate in the reaction. Since the selenium atom replaces oxygen in serine, the product may also be referred to as L-selenoseryl-tRNASec. The symbol Sel has also been used for selenocysteine but Sec is preferred. Group: Enzymes. Synonyms: L-selenocysteinyl-tRNASel synthase; L-selenocysteinyl-tRNASec synthase selenocysteine synthase; cysteinyl-tRNASec-selenium transferase; cysteinyl-tRNASec-selenium transferase. Enzyme Commission Number: EC 2.9.1.1. CAS No. 183869-06-9. 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-3432; L-seryl-tRNASec selenium transferase; EC 2.9.1.1; 183869-06-9; L-selenocysteinyl-tRNASel synthase; L-selenocysteinyl-tRNASec synthase selenocysteine synthase; cysteinyl-tRNASec-selenium transferase; cysteinyl-tRNASec-selenium transferase. Cat No: EXWM-3432.
A cell-permeable dihydroquinolinone compound that acts as a potent, specific, and reversible inhibitor of DNA-binding activity of Late SV40 Factor (LSF) and blocks LSF transactivation (IC50=2.1uM in NIH 3T3 cells). Exhibits anti-proliferative activity and growth arrest in multiple cell lines (GI50=3.8, 0.79, and 6.3uM in NIH 3T3, HeLa S3 and A549 cells, respectively). Shown to induce apoptotic cell death in liver cancer cell lines over-expressing LSF without affecting primary or immortalized hepatocytes. Also shown to inhibit hepatocellular carcinoma s.c. growth in mouse xenograft model without any toxic effects (1mg/kg, i.p., once every 3 days). Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences.
Worldwide
LSKL, Inhibitor of Thrombospondin (TSP-1)
LSKL, Inhibitor of Thrombospondin (TSP-1) is a latency-associated protein (LAP)-TGF? derived tetrapeptide and a competitive TGF-?1 antagonist. LSKL, Inhibitor of Thrombospondin (TSP-1) inhibits the binding of TSP-1 to LAP and alleviates renal interstitial fibrosis and hepatic fibrosis. LSKL, Inhibitor of Thrombospondin (TSP-1) suppresses subarachnoid fibrosis via inhibition of TSP-1-mediated TGF-?1 activity, prevents the development of chronic hydrocephalus and improves long-term neurocognitive defects following subarachnoid hemorrhage (SAH). LSKL, Inhibitor of Thrombospondin (TSP-1) can readily crosse the blood-brain barrier[1][2]. Uses: Scientific research. Group: Peptides. CAS No. 283609-79-0. Pack Sizes: 1 mg; 5 mg; 10 mg; 25 mg. Product ID: HY-P0299.
LSKL, Inhibitor of Thrombospondin TSP-1
LSKL, Inhibitor of Thrombospondin (TSP-1), derived from the latency-associated peptide, inhibits thrombospondin (TSP-1) activation of TGF-β, thus prevents the progression of hepatic damage and fibrosis. Synonyms: H-LSKL-NH2; L-leucyl-L-seryl-L-lysyl-L-leucinamide. Grade: ≥98%. CAS No. 283609-79-0. Molecular formula: C21H42N6O5. Mole weight: 458.59.
LSKL, Inhibitor of Thrombospondin (TSP-1) TFA
LSKL, Inhibitor of Thrombospondin (TSP-1) TFA is a latency-associated protein (LAP)-TGF? derived tetrapeptide and a competitive TGF-?1 antagonist. LSKL, Inhibitor of Thrombospondin (TSP-1) TFA inhibits the binding of TSP-1 to LAP and alleviates renal interstitial fibrosis and hepatic fibrosis. LSKL, Inhibitor of Thrombospondin (TSP-1) TFA suppresses subarachnoid fibrosis via inhibition of TSP-1-mediated TGF-?1 activity, prevents the development of chronic hydrocephalus and improves long-term neurocognitive defects following subarachnoid hemorrhage (SAH). LSKL, Inhibitor of Thrombospondin (TSP-1) TFA can readily crosse the blood-brain barrier[1][2]. Uses: Scientific research. Group: Peptides. CAS No. 2828433-17-4. Pack Sizes: 5 mg; 10 mg; 25 mg. Product ID: HY-P0299A.
LSN2463359 is positive allosteric modulator of metabotropic glutamate 5 ( mGlu 5 ). LSN2463359 attenuates aspects of the behavioral response to administration of the competitive NMDA receptor antagonist. LSN2463359 selectively attenuates reversal learning deficits observed in the neurodevelopmental MAM E17 model [1]. LSN2463359 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. Uses: Scientific research. Group: Signaling pathways. CAS No. 1401031-52-4. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-110152.
LSN 2463359
LSN 2463359. Group: Biochemicals. Grades: Purified. CAS No. 1401031-52-4. Pack Sizes: 10mg, 50mg. US Biological Life Sciences.
Sorbose. CAS No. 87-79-6. Categories: l-(-)-sorbose.
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L-sorbose 1-dehydrogenase
The product, L-sorbosone, is an intermediate in bacterial 2-keto-L-gulonic-acid formation. The activity of this membrane-bound enzyme is stimulated by Fe(III) or Co2+ but is inhibited by Cu2+. The enzyme is highly specific for L-sorboseas other sugars, such as glucose, mannitol and sorbitol, are not substrates. Phenazine methosulfate and DCIP can act as artificial acceptors. Group: Enzymes. Synonyms: SDH. Enzyme Commission Number: EC 1.1.99.32. 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-0461; L-sorbose 1-dehydrogenase; EC 1.1.99.32; SDH. Cat No: EXWM-0461.
L-Sorbose-[4-13C]
Labelled L-Sorbose. L-Sorbose is a low molecular weight naturally occurring monosaccharide carbohydrate molecule. Synonyms: L-[4-13C]sorbose. CAS No. 478506-34-2. Molecular formula: C5[13C]H12O6. Mole weight: 181.15.
L-Sorbose-4-13C
L-Sorbose-4-13C. Group: Biochemicals. Grades: Highly Purified. CAS No. 478506-34-2. Pack Sizes: 5mg. Molecular Formula: 13CC5H12O6, Molecular Weight: 181.15. US Biological Life Sciences.
Labelled L-Sorbose. L-Sorbose is a low molecular weight naturally occurring monosaccharide carbohydrate molecule. Synonyms: L-[5-13C]Sorbose. CAS No. 478506-36-4. Molecular formula: C5[13C]H12O6. Mole weight: 181.15.
L-Sorbose-5-13C
L-Sorbose-5-13C. Group: Biochemicals. Grades: Highly Purified. CAS No. 478506-36-4. Pack Sizes: 10mg. Molecular Formula: 13CC5H12O6, Molecular Weight: 181.15. US Biological Life Sciences.
Worldwide
L-Sorbose-[6-13C]
Labelled L-Sorbose. L-Sorbose is a low molecular weight naturally occurring monosaccharide carbohydrate molecule. Synonyms: L-[6-13C]Sorbose. CAS No. 478506-38-6. Molecular formula: C5[13C]H12O6. Mole weight: 181.15.
L-Sorbose-6-13C
L-Sorbose-6-13C. Group: Biochemicals. Grades: Highly Purified. CAS No. 478506-38-6. Pack Sizes: 10mg. Molecular Formula: 13CC5H12O6, Molecular Weight: 181.15. US Biological Life Sciences.
Worldwide
L-sorbose oxidase
Also acts on D-glucose, D-galactose and D-xylose, but not on D-fructose. 2,6-Dichloroindophenol can act as acceptor. Group: Enzymes. Enzyme Commission Number: EC 1.1.3.11. CAS No. 37250-81-0. 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-0393; L-sorbose oxidase; EC 1.1.3.11; 37250-81-0. Cat No: EXWM-0393.
LSTc
LSTc (LS-tetrasaccharide c) is a human lactooligosaccharide presents on glycoproteins and glycolipids. LSTc is also a specific human JC polyomavirus (JCV) recognition motif. LSTc has good potential for the study of progressive multifocal leukoencephalopathy (PML) [1]. Uses: Scientific research. Group: Natural products. Alternative Names: LS-tetrasaccharide c. CAS No. 64003-55-0. Pack Sizes: 500 μg; 1 mg; 5 mg. Product ID: HY-N10633.
LSTc-biotin
LSTc-biotin: An innovative tool for probing LSTc glycan structures that lurk on the surfaces of certain cancer cells and immune cells. With its unparalleled specificity for LSTc, this form of biotin serves as a pivotal reagent in the biomedical investigation of cancer and inflammatory diseases. Via fluorescence labeling of the target cells, LSTc-biotin endows researchers with extraordinary insight into the behavior of these cells and propels the development of novel therapies for ailments such as rheumatoid arthritis and cancer. Synonyms: O-(N-Acetyl-α-neuraminosyl)-(2→6)-O-β-D-galactopyranosyl-(1→4)-O-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl-(1→3)-O-β-D-galactopyranosyl-(1→4)-D-glucose-biotin; LS-tetrasaccharide c-biotin; Sialyllacto-N-neotetraose c-biotin; SLNT-c-biotin. Molecular formula: C53H89N7O31S. Mole weight: 1352.37.
L-Stepholidine
L-Stepholidine. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 3,9-Dimethoxy-13a-alpha-berbine-2,10-diol. Appearance: White to off-white crystalline powder. CAS No. 16562-13-3. Molecular formula: C19H21NO4. Mole weight: 327.4. Purity: 90%+. Product ID: ACM16562133. Alfa Chemistry ISO 9001:2015 Certified.
LSZ102 is a potent ERα antagonist and degrader. LSZ102 showed ERα degradation IC50=0.2 nM. LSZ102 demonstrated IC50 for MCF-7 cells=1.7 nM. Upon administration of LSZ102, this agent binds to the ER and induces the degradation of the receptor. This prevents ER activation and ER-mediated signaling, and inhibits the growth and survival of ER-expressing cancer cells. Uses: Designed for use in research and industrial production. Additional or Alternative Names: LSZ102; LSZ-102; LSZ 102; SERD LSZ102; SERD LSZ-102; SERD LSZ 102. Product Category: Antagonists. Appearance: Solid powder. CAS No. 2135600-76-7. Molecular formula: C25H17F3O4S. Mole weight: 470.46. Purity: >98%. IUPACName: (E) -3- (4-((2-(2- (1,1-Difluoroethyl)-4-fluorophenyl)-6-hydroxybenzo[b]thiophen-3-yl)oxy)phenyl)acrylic Acid. Canonical SMILES: O=C(O)/C=C/C1=CC=C(OC2=C(C3=CC=C(F)C=C3C(F)(F)C)SC4=CC(O)=CC=C42)C=C1. Product ID: ACM2135600767. Alfa Chemistry ISO 9001:2015 Certified.
LT25 (compound 17) is a agonist of α5β1 integrin with EC 50 value of 9.9 nM [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 2023788-40-9. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg. Product ID: HY-164768.
L-talarate dehydratase
Requires Mg2+. The enzyme, isolated from the bacteria Salmonella typhimurium and Polaromonas sp. JS666, also has activity with galactarate (cf. EC 4.2.1.42, galactarate dehydratase). Group: Enzymes. Synonyms: L-talarate hydro-lyase. Enzyme Commission Number: EC 4.2.1.156. 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-4997; L-talarate dehydratase; EC 4.2.1.156; L-talarate hydro-lyase. Cat No: EXWM-4997.
certified reference material. Group: Flavor and fragrance standards.
L-Tartaric acid
1kg Pack Size. Group: Aroma Chemicals, Ligands. Formula: HO2CCH(OH)CH(OH)CO2H. CAS No. 87-69-4. Prepack ID 36724317-1kg. Molecular Weight 150.09. See USA prepack pricing.
L+Tartaric Acid
Complexing agent. Group: Biochemicals. Alternative Names: 2,3-dihydroxybutanedioic acid; (2R,3R)-2,3-Dihydroxysuccinic acid. Grades: ACS Grade. CAS No. 87-69-4. Pack Sizes: 100g, 500g, 2.5Kg, 5Kg. Molecular Formula: C4H6O6, Molecular Weight: 150.09. US Biological Life Sciences.
Worldwide
L(+)-Tartaric acid 99+% ACS
Purity (Titration): Group: Biochemicals. Grades: ACS Grade. CAS No. 87-69-4. Pack Sizes: 100g, 500g, 1Kg, 5Kg, 10Kg. US Biological Life Sciences.
Worldwide
L-Tartaric Acid, crystal
L-Tartaric Acid, crystal. Grades: NF. CAS No. 87-69-4. Pack Sizes: Gram Quantities: 6 x 500 gm, 4 x 2.5 kg. Order Number: 26362.
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L-(+)-Tartaric acid FCC, 99.7%
L-(+)-Tartaric acid FCC, 99.7%. CAS No: 87-69-4
Sarchem Laboratories New Jersey NJ
L(+)-tartrate dehydratase
The enzyme exists in an inactive low-molecular-mass form, which is converted into active enzyme in the presence of Fe2+ and thiol. cf. EC 4.2.1.81 D(-)-tartrate dehydratase. Group: Enzymes. Synonyms: tartrate dehydratase; tartaric acid dehydrase; L-tartrate dehydratase; L-(+)-tartaric acid dehydratase; (R,R)-tartrate hydro-lyase. Enzyme Commission Number: EC 4.2.1.32. CAS No. 9014-40-8. 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-5023; L(+)-tartrate dehydratase; EC 4.2.1.32; 9014-40-8; tartrate dehydratase; tartaric acid dehydrase; L-tartrate dehydratase; L-(+)-tartaric acid dehydratase; (R,R)-tartrate hydro-lyase. Cat No: EXWM-5023.
LtaS-IN-1
LtaS-IN-1 (compound 1771) is a potent small-molecule inhibitor of Lipoteichoic acid (LTA) synthesis in multidrug-resistant (MDR) E. faecium and by altering the cell wall morphology. LtaS-IN-1 alone inhibits Enterococcus.spp 28 strains with varying MIC values ranging from 0.5 ?g/mL to 64 ?g/mL. LtaS-IN-1 combination with antibiotics abolishs multidrug-resistant E. faecium growth almost completely[1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 877950-01-1. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 50 mg; 100 mg. Product ID: HY-135813.