A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
LL AF283beta is extracted from Streptomyces filipinensis with anti-gram-positive bacteria activity. Synonyms: LL-AF283beta; (3R,4S,7S,10S)-10-amino-7-((S)-3-((S)-2-amino-5-guanidinopentanamido)-2-hydroxypropyl)-14,24,3-trihydroxy-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacycloundecaphane-4-carboxylic acid. Grades: >98%. CAS No. 135529-34-9. Molecular formula: C29H40N8O9. Mole weight: 644.67.
LL-BM-123alpha
LL-BM-123alpha is originally isolated from Nocardia sp with moderate anti-gram-negative activity. Synonyms: antibiotic LL-BM 123alpha; D-myo-Inositol, O-2-(((S)-2-amino-5-((aminoiminomethyl)amino)-1-oxopentyl)amino)-2-deoxy-alpha-D-glucopyranosyl-(1->4)-O-alpha-D-mannopyranosyl-(1->4)-2-((((S)-5-amino-3,4-dihydro-2H-pyrrol-2-yl)carbonyl)amino)-2-deoxy-, 5-carbamate. CAS No. 52932-62-4. Molecular formula: C30H53N9O17. Mole weight: 811.79.
LL-BM-726
LL-BM-726 is a water-soluble antibiotic produced by the strain of Streptomyces BM726. And it has anti-gram-negative bacteria activity. Synonyms: LL-BM726; [(2-Amino-5-carbamimidamido-1-hydroxypentylidene)amino](1-hydroxy-2-oxocyclopent-3-en-1-yl)acetic acid. Grades: >98%. CAS No. 96695-56-6. Molecular formula: C13H21N5O5. Mole weight: 327.34.
LL-BM-781 α1
It is originally isolated from Nocardia sp. BM 782Ce82 (NRRL 11239). LL-BM-781 α1 has anti-mycobacterium, gram-positive and negative activities. Synonyms: Antibiotic LL-BM-781 α1. CAS No. 72380-11-1. Molecular formula: C39H75N13O16. Mole weight: 982.09.
LL-BM-781 α1a
It is originally isolated from Nocardia sp. BM 782Ce82 (NRRL 11239). LL-BM-781 α1a has anti-mycobacterium, gram-positive and negative activities. Synonyms: Antibiotic LL-BM-781 α1a. CAS No. 72380-10-0. Molecular formula: C45H87N15O17. Mole weight: 1110.26.
LL-BM-781 α2
It is originally isolated from Nocardia sp. BM 782Ce82 (NRRL 11239). LL-BM-781 α2 has anti-mycobacterium, gram-positive and negative activities. Synonyms: Antibiotic LL-BM-781 α2. CAS No. 72380-09-7. Molecular formula: C33H63N11O15. Mole weight: 853.92.
LL D05139(beta)
LL D05139(beta) is produced by the strain of Glycomyces harbinensis. It has anti-gram-positive and anti-gram-negative bacteria activities, and its activity is stronger than that of nitroserine. And its antitumor activity is similar to that of diazoserine and lower than Bleomycin. Synonyms: N-(L-alanyl)-O-(2-diazoacetyl)-L-serine; N-l-alanyl-l-serine diazoacetate. CAS No. 95153-19-8. Molecular formula: C8H12N4O5. Mole weight: 244.20.
LL-D49194alpha1
LL-D49194alpha1 is produced by the strain of Streptomyces vinaceusdrappus LL-D49194. It has anti-gram-positive bacteria activity and anti-P388 leukemia and B16 melanoma effect. Synonyms: LL-D 49194 alpha1; NSC-381856; Trioxacarcin A, 13-O-de(4-C-acetyl-2,6-dideoxy-alpha-L-xylo-hexopyranosyl)-16-O-demethyl-16-O-(2,6-dideoxy-4-O-(2,6-dideoxy-3-C-methyl-alpha-L-xylo-hexopyranosyl)-3-C-methyl-alpha-L-xylo-hexopyranosyl)-13-O-methyl-. CAS No. 99755-38-1. Molecular formula: C48H64O22. Mole weight: 993.01.
LL-D49194beta1
LL-D49194beta1 is produced by the strain of Streptomyces vinaceusdrappus LL-D49194. It has anti-gram-positive bacteria activity and anti-P388 leukemia and B16 melanoma effect. Synonyms: 13-O-de(4-C-Acetyl-2,6-dideoxy-alpha-L-xylo-hexopyranosyl)-14,17-deepoxy-16-O-demethyl-16-O-(2,6-dideoxy-4-O-(2,6-dideoxy-3-C-methyl-alpha-L-xylo-hexopyranosyl)-3-C-methyl-alpha-L-xylo-hexopyranosyl)-14,17-dihydroxy-13-O-methyltrixacarcin A; Trixacarcin A, 13-O-de(4-C-acetyl-2,6-dideoxy-alpha-L-xylo-hexopyranosyl)-14,17-deepoxy-16-O-demethyl-16-O-(2,6-dideoxy-4-O-(2,6-dideoxy-3-C-methyl-alpha-L-xylo-hexopyranosyl)-3-C-methyl-alpha-L-xylo-hexopyranosyl)-14,17-dihydroxy-13-O-methyl-. CAS No. 99743-20-1. Molecular formula: C48H66O23. Mole weight: 1011.02.
LL-diaminopimelate aminotransferase
A pyridoxal-phosphate enzyme. In vivo, the reaction occurs in the opposite direction to that shown above. This is one of the final steps in the lysine-biosynthesis pathway of plants (ranging from mosses to flowering plants). meso-Diaminoheptanedioate, an isomer of LL-2,6-diaminoheptanedioate, and the structurally related compounds lysine and ornithine are not substrates. 2-Oxoglutarate cannot be replaced by oxaloacetate or pyruvate. It is not yet known if the substrate of the biosynthetic reaction is the cyclic or acyclic form of tetrahydropyridine-2,6-dicarboxylate. Group: Enzymes. Synonyms: LL-diaminopimelate transaminase; LL-DAP aminotransferase; LL-DAP-AT. Enzyme Commission Number: EC 2.6.1.83. CAS No. 949001-34-7. 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-2924; LL-diaminopimelate aminotransferase; EC 2.6.1.83; 949001-34-7; LL-diaminopimelate transaminase; LL-DAP aminotransferase; LL-DAP-AT. Cat No: EXWM-2924.
L,L-Dityrosine
L,L-Dityrosine (o,o'-Dityrosine) is a constituent of acid hydrolysates of a number of biological materials, including the insect cuticular resilin [1]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: o,o'-Dityrosine. CAS No. 63442-81-9. Pack Sizes: 1 mg; 5 mg; 10 mg; 50 mg. Product ID: HY-101552A.
L,L-Dityrosine Dihydrochloride
L,L-Dityrosine Dihydrochloride. Group: Biochemicals. Alternative Names: (a3S,a3'S)-a3,a3'-Diamino-6,6'-dihydroxy-[1,1'-biphenyl]-3,3'-dipropanoic acid hydrochloride; [S-(R*,R*)]- a,a'-Diamino-6,6'-dihydroxy-[1,1'-biphenyl]-3,3'-dipropanoic acid hydrochloride; 3,3'-Bityrosine hydrochloride. Grades: Highly Purified. CAS No. 221308-01-6. Pack Sizes: 2mg, 5mg, 10mg, 25mg, 50mg. Molecular Formula: C18H20N2O6·2HCl. US Biological Life Sciences.
Worldwide
L,L-Dityrosine hydrochloride
L,L-Dityrosine hydrochloride (o,o'-Dityrosine hydrochloride) is a constituent of acid hydrolysates of a number of biological materials, including the insect cuticular resilin [1]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: o,o'-Dityrosine hydrochloride. CAS No. 221308-01-6. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 50 mg. Product ID: HY-101552B.
LLDPE
LLDPE. Group: Polymers.
LL-E19085alpha
LL-E19085alph is a quinone antibiotic produced by Micromonospora citrea. It is active against gram-positive bacteria. Synonyms: citreamicin A. CAS No. 122535-63-1. Molecular formula: C36H31NO12. Mole weight: 669.63.
L-Leucinamide,l-a-glutamyl-L-Leucyl-L-a-glutamyl-L-prolyl-L-a-glutamyl-L-a-aspartyl-L-a-glutamyl-L-alanyl-L-arginyl-L-prolylglycylglycyl-L-phenylalanyl-L-a-aspartyl-L-arginyl-L-leucyl-l-glutaminyl-l-. Uses: Designed for use in research and industrial production. Additional or Alternative Names: H-GLU-LEU-GLU-PRO-GLU-ASP-GLU-ALA-ARG-PRO-GLY-GLY-PHE-ASP-ARG-LEU-GLN-SER-GLU-ASP-LYS-ALA-ILE-ARG-THR-ILE-MET-GLU-PHE-LEU-ALA-PHE-LEU-HIS-LEU-LYS-GLU-ALA-GLY-ALA-LEU-NH2;GMAP (1-41) AMIDE;GALANIN MESSAGE ASSOCIATED PEPTIDE FRAGMENT 1-41 AMIDE PORCINE;GAL. Product Category: Heterocyclic Organic Compound. CAS No. 132699-74-2. Molecular formula: C206H326N56O64S. Mole weight: 4643.19. Product ID: ACM132699742. Alfa Chemistry ISO 9001:2015 Certified.
L-Leucinamide,N-[(phenylmethoxy)carbonyl]-l-leucyl-N-[(1S)-1-formylbutyl]-. Uses: Designed for use in research and industrial production. Additional or Alternative Names: MG-115, Z-LL-Nva-CHO, Carbobenzoxy-L-leucyl-L-leucyl-L-norvalinal, 133407-86-0, Z-LLnV, MG115, Z-Leu-Leu-Norvalinal, Curator_000004, CTK8E7547, ZINC14806791, NCGC00345815-01. Product Category: Heterocyclic Organic Compound. Appearance: white powder. CAS No. 133407-86-0. Molecular formula: C25H39N3O5. Mole weight: 461.6. Purity: 0.96. IUPACName: benzyl N-[(2S)-4-methyl-1-[[(2S)-4-methyl-1-oxo-1-[[(2S)-1-oxopentan-2-yl]amino]pentan-2-yl]amino]-1-oxopentan-2-yl]carbamate. Canonical SMILES: CCCC(C=O)NC(=O)C(CC(C)C)NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1. Product ID: ACM133407860. Alfa Chemistry ISO 9001:2015 Certified.
L-Leucine
100g Pack Size. Group: Amino Acids. Formula: C6H13NO2. CAS No. 61-90-5. Prepack ID 17954292-100g. Molecular Weight 131.17. See USA prepack pricing.
L-Leucine
L-leucine is an essential amino acid necessary for normal growth in infants and normal nitrogen balance in adults. The product is used as a nutritional supplement to prepare amino acid infusion and comprehensive amino acid preparation, hypoglycemic agent, plant growth promotion agent. CAS No. 61-90-5. Product ID: CDF4-0222. Molecular formula: C6H13NO2. Category: Amino acid. Product Keywords: Amino Acids; L-Leucine; CDF4-0222; Amino acid; C6H13NO2; 61-90-5. Grade: Food Grade. Color: White to Off-white. EC Number: 200-522-0. Physical State: powder. Solubility: 1 M HCl: 50 mg/mL. Storage: 2-8°C. Boiling Point: 122-134 °C(Press: 2-3 Torr). Melting Point: >300 °C (lit.). Density: 1,293 g/cm3.
L-Leucine
1kg Pack Size. Group: Amino Acids. Formula: C6H13NO2. CAS No. 61-90-5. Prepack ID 17954292-1kg. Molecular Weight 131.17. See USA prepack pricing.
L-Leucine
L-Leucine is an essential branched-chain amino acid used in the biosynthesis of protein. It is obtained from dietary sources. Protein supplement in health care products. Uses: Ingredient of health care products. Synonyms: Leucine; (S)-2-Amino-4-methylpentanoic acid; (S)-Leucine; H-Leu-OH. Grades: 98%. CAS No. 61-90-5. Molecular formula: C6H13NO2. Mole weight: 131.18.
L-Leucine
L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway [1]. Uses: Scientific research. Group: Natural products. Alternative Names: Leucine. CAS No. 61-90-5. Pack Sizes: 100 mg; 250 mg; 500 mg. Product ID: HY-N0486.
L-Leucine-1-13c,N-[(9H-fluoren-9-ylmethoxy)carbonyl]-. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Fmoc-Leu-OH-1-13C, L-Leucine-1-13C, N-Fmoc, N-(9-Fluorenylmethoxycarbonyl)-L-leucine-1-13C, 485934_ALDRICH, 202114-53-2. Product Category: Heterocyclic Organic Compound. CAS No. 202114-53-2. Molecular formula: C21H23NO4. Mole weight: 354.42. Purity: 0.96. IUPACName: (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methylpentanoic acid. Canonical SMILES: CC(C)CC(C(=O)O)NC(=O)OCC1C2=CC=CC=C2C3=CC=CC=C13. Product ID: ACM202114532. Alfa Chemistry ISO 9001:2015 Certified.
L-Leucine-13C
L-Leucine- 13 C is the 13 C-labeled L-Leucine. L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway[1]. Uses: Scientific research. Group: Isotope-labeled compounds. CAS No. 74292-94-7. Pack Sizes: 10 mM * 1 mL; 25 mg; 50 mg; 100 mg. Product ID: HY-N0486S1.
L-Leucine-13C6
Leucine- 13 C 6 is the 13 C-labeled L-Leucine. L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway[1]. Uses: Scientific research. Group: Isotope-labeled compounds. CAS No. 201740-84-3. Pack Sizes: 1 mg; 5 mg; 10 mg. Product ID: HY-N0486S2.
L-Leucine-13C6
L-LEUCINE-13C6, also known as 13C6-D-Leucine or L-Leucine-1,?2,?3,?4,?5,?5'-13C6, is a fully 13C labelled D-Leucine. Uses: Designed for use in research and industrial production. Product Category: Others. Appearance: Solid powder. CAS No. 201740-84-3. Molecular formula: 13C6H13O2N. Mole weight: 137.13. Purity: >98%. IUPACName: L-Leucine-1,?2,?3,?4,?5,?5'-13C6. Canonical SMILES: N[C@@H](CC(C)C)C(O)=O. Product ID: ACM201740843-1. Alfa Chemistry ISO 9001:2015 Certified.
L-Leucine-13C6
98 atom % 13C, 95% (CP). Group: Fluorescence/luminescence spectroscopy.
L-Leucine-13C6,15N
98 atom % 13C, 98 atom % 15N, 95% (CP). Group: Fluorescence/luminescence spectroscopy.
L-Leucine-13C6,15N
L-Leucine- 13 C 6 , 15 N is the 13 C- and 15 N-labeled L-Leucine. L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway[1]. Uses: Scientific research. Group: Isotope-labeled compounds. CAS No. 202406-52-8. Pack Sizes: 1 mg; 5 mg; 10 mg. Product ID: HY-N0486S8.
L-Leucine-15N
98 atom % 15N. Group: Fluorescence/luminescence spectroscopy.
L-Leucine-2-chlorotrityl resin
L-Leucine-2-chlorotrityl resin. Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 1g, 5g. US Biological Life Sciences.
A substrate for the colorimetric determination of leucine aminopeptidase. Synonyms: L-Leu-pNA; L-Leucine-p-nitroanilide. Grades: ≥ 99% (HPLC). CAS No. 4178-93-2. Molecular formula: C12H17N3O3. Mole weight: 251.30.
L-Leucine 4-nitroanilide
L-Leucine 4-nitroanilide. Group: Biochemicals. Alternative Names: L-Leu-pNA. Grades: Highly Purified. CAS No. 4178-93-2. Pack Sizes: 2g, 5g, 10g, 25g. US Biological Life Sciences.
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L-Leucine 4-nitroanilide 99+% (HPLC)
L-Leucine 4-nitroanilide 99+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 1g, 5g, 25g. US Biological Life Sciences.
Worldwide
L-Leucine 4-nitrophenyl ester hydrochloride
L-Leucine 4-nitrophenyl ester hydrochloride. Group: Biochemicals. Alternative Names: L-Leu-ONp·HCl; (S)-2-Amino-4-methyl-pentanoic acid 4-nitrophenyl ester. Grades: Highly Purified. Pack Sizes: 10g, 25g. US Biological Life Sciences.
L-Leucine 4-nitrophenyl ester hydrochloride 98+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 5g, 25g. US Biological Life Sciences.
Worldwide
L-Leucine-5,5,5-d3
L-Leucine-5,5,5-d3. Uses: Designed for use in research and industrial production. Additional or Alternative Names: L-Leucine-5,5,5-d3, L-Leucine-d3, (S)-Leucine-d3, L-(+)-Leucine-d3, (S)-(+)-Leucine-d3, L-|A-Aminoisocaproic Acid-d3, 486825_ALDRICH, NSC 46709-d3, L-2-Amino-4-methylpentanoic Acid-d3, (S)-2-Amino-4-methylvaleric Acid-d3, (S)-2-Amino-4-methylpentanoic Acid-d3, (2S)-2-Amino-4-methylpentanoic Acid-d3, FT-0670765, 87828-86-2. Product Category: Heterocyclic Organic Compound. CAS No. 87828-86-2. Molecular formula: C6H10D3NO2. Mole weight: 134.19. Purity: 99 atom % D. IUPACName: (2S)-2-amino-5,5,5-trideuterio-4-methylpentanoic acid. Canonical SMILES: CC(C)CC(C(=O)O)N. Density: 1.06 g/cm³. Product ID: ACM87828862. Alfa Chemistry ISO 9001:2015 Certified.
L-Leucine-5,5,5-d3
99 atom % D. Group: Fluorescence/luminescence spectroscopy.
L-Leucine 7-amido-4-methylcoumarin
Sensitive fluorogenic A substrate for leucine aminopeptidase and aminopeptidase M. Synonyms: L-Leu-AMC; L-leucine 4-methylcoumaryl-7-amide; 7-Leucylamido-4-methylcoumarin; (S)-2-amino-4-methyl-N-(4-methyl-2-oxo-2H-1-benzopyran-7-yl)valeramide. Grades: ≥ 99.5% (HPLC). CAS No. 66447-31-2. Molecular formula: C16H20N2O3. Mole weight: 288.37.
L-Leucine 7-amido-4-methylcoumarin
L-Leucine 7-amido-4-methylcoumarin. Group: Biochemicals. Alternative Names: L-Leu-AMC. Grades: Highly Purified. CAS No. 66447-31-2. Pack Sizes: 25mg, 50mg, 100mg, 250mg. US Biological Life Sciences.
Worldwide
L-Leucine 7-amido-4-methylcoumarin 99.5+% (HPLC)
L-Leucine 7-amido-4-methylcoumarin 99.5+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 100mg, 250mg. US Biological Life Sciences.
Worldwide
L-Leucine-7-amido-4-methylcoumarin hydrochloride
L-Leucine-7-amido-4-methylcoumarin (Leu-AMC) hydrochloride is a bright blue fluorogenic peptidyl substrate for LAP3 (leucine aminopeptidase). L-Leucine-7-amido-4-methylcoumarin hydrochloride can be used for leucine aminopeptidase inhibition assays in vitro [1]. Uses: Scientific research. Group: Fluorescent dye. Alternative Names: Leu-AMC hydrochloride. CAS No. 62480-44-8. Pack Sizes: 5 mg; 10 mg; 25 mg. Product ID: HY-137844.
L-Leucine allyl ester 4-toluenesulfonate salt. Group: Biochemicals. Alternative Names: L-Leu-OAll·TosOH. Grades: Highly Purified. CAS No. 88224-03-7. Pack Sizes: 2g, 5g, 10g, 25g, 50g. US Biological Life Sciences.
Worldwide
L-Leucine allyl ester 4-toluenesulfonate salt 98+% (HPLC)
L-Leucine allyl ester 4-toluenesulfonate salt 98+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. CAS No. 88224-03-7. Pack Sizes: 5g, 25g, 100g. US Biological Life Sciences.
Worldwide
L-Leucine α-naphthylamide
A substrate for a histochemical assay of aminopeptidase M. Synonyms: L-Leu-αNA; (2S)-2-amino-4-methyl-N-naphthalen-1-ylpentanamide. Grades: ≥ 98% (TLC). CAS No. 203793-55-9. Molecular formula: C16H20N2O. Mole weight: 256.35.
L-Leucine alpha-naphthylamide
L-Leucine alpha-naphthylamide. Group: Biochemicals. Alternative Names: L-Leu-aNA. Grades: Highly Purified. CAS No. 203793-55-9. Pack Sizes: 250mg, 500mg, 1g. US Biological Life Sciences.
Worldwide
L-Leucine amide
L-Leucine amide. Group: Biochemicals. Alternative Names: L-Leu-NH2. Grades: Highly Purified. CAS No. 687-51-4. Pack Sizes: 5g, 10g, 25g, 50g, 100g. US Biological Life Sciences.
L-Leucine amide 98+% (GC). Group: Biochemicals. Grades: GC. CAS No. 687-51-4. Pack Sizes: 1g, 5g, 25g, 100g. US Biological Life Sciences.
Worldwide
L-Leucine amide hydrochloride
L-Leucine amide hydrochloride. Group: Biochemicals. Alternative Names: L-Leu-NH2·HCl. Grades: Highly Purified. CAS No. 10466-61-2. Pack Sizes: 10g, 25g, 50g, 100g. US Biological Life Sciences.
Worldwide
L-Leucine amide hydrochloride
L-Leucinamide Hydrochloride, is a derivative of Leucine, which is an essential amino acid, and acts as a nutrient signal to stimulate protein synthesis. L-Leucinamide Hydrochloride, is shown to be the potential elicitor of insulin secretion in rats. Synonyms: L-Leu-NH2 HCl; [(2S)-1-amino-4-methyl-1-oxopentan-2-yl]azanium; (R)-2-Amino-4-Methylvaleramide; L-Leucinamide Hydrochloride. Grades: ≥ 99% (HPLC). CAS No. 10466-61-2. Molecular formula: C6H14N2O·HCl. Mole weight: 166.70.
L-Leucine amide hydrochloride 99+% (HPLC)
L-Leucine amide hydrochloride 99+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 1g, 5g, 25g, 100g. US Biological Life Sciences.
Worldwide
L-Leucine a-naphthylamide 98+% (TLC)
L-Leucine a-naphthylamide 98+% (TLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 250mg, 1g. US Biological Life Sciences.