BOC Sciences provides a wide range of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds.
| Product | Description | |
|---|---|---|
| L-Aspartic acid β-4-nitroanilide hydrochloride | Synonyms: L-Asp(pNA)-OH HCl; ASPARTIC ACID(PNA)-OH HCl; H-Asp(pNA)-OH. Grades: 99%. CAS No. 201732-79-8. Molecular formula: C10H11N3O5·HCl. Mole weight: 289.59. |  |
| L-Aspartic acid β-7-amido-4-methylcoumarin | Synonyms: L-Asp(AMC)-OH; L-Aspartic acid β-(7-amido-4-methylcoumarin). Grades: ≥ 99% (HPLC). CAS No. 133628-73-6. Molecular formula: C14H14N2O5. Mole weight: 290.23. | |
| L-Aspartic acid β-benzyl ester 7-amido-4-methylcoumarin hydrochloride | Synonyms: L-Asp(OBzl)-AMC HCl; ASPARTIC ACID(OBZL)-AMC HCl; H-Asp(OBzl)-AMC. Grades: ≥ 99% (HPLC). CAS No. 219138-15-5. Molecular formula: C21H20N2O5·HCl. Mole weight: 416.86. | |
| L-Aspartic acid β-benzyl ester α-amide hydrochloride | Synonyms: L-Asp(OBzl)-NH2 HCl; L-Aspartic acid alpha-amide beta-benzyl ester hydrochloride; H-L-IsoAsn-OBzl HCl; L-ASPARTIC ACID α-AMIDE β-BENZYL ESTER HYDROCHLORIDE; H-L-ASP(BZL)-NH2 HCl; H-ASP(OBZL)-NH2 HCl. Grades: ≥ 98% (HPLC). CAS No. 199118-68-8. Molecular formula: C11H14N2O3·HCl. Mole weight: 258.80. | |
| L-Aspartic acid β-benzyl ester α-t-butyl ester hydrochloride | Synonyms: H-Asp(OBzl)-OtBu HCl. CAS No. 52615-97-1. Molecular formula: C15H22ClNO4. Mole weight: 315.79. | |
| L-Aspartic acid β-benzyl ester α-tert-butyl ester hydrochloride | Synonyms: L-Asp(OBzl)-OtBu HCl; 4-benzyl 1-t-butyl L-aspartate; (S)-4-Benzyl 1-tert-butyl 2-aminosuccinate hydrochloride; 4-Benzyl 1-(2-methyl-2-propanyl) L-aspartate hydrochloride; (2S)-4-benzyl 1-tert-butyl aspartate; tert-butyl benzyl aspartate. Grades: ≥ 99% (HPLC). CAS No. 94347-11-2. Molecular formula: C15H21NO5·HCl. Mole weight: 331.83. | |
| L-Aspartic acid β-cyclohexyl ester | Synonyms: L-Asp(OcHex)-OH; ASPARTIC ACID-4-CYCLOHEXYL ESTER; L-Aspartic acid B-cyclohexyl ester. Grades: ≥ 98%. CAS No. 112259-66-2. Molecular formula: C10H17NO4. Mole weight: 215.30. | |
| L-Aspartic acid β-methyl ester hydrochloride | L-Aspartic acid 4-methyl ester is a protected form of L-Aspartic acid. L-Aspartic acid is a non-essential amino acid that is used to biosynthesize other amino acids within the human body. L-Aspartic acid also increases membrane conductance of mammalian neurons by voltage-dependent means, causing depolarization and nerve impulses that travel to key areas of the central nervous system. Synonyms: L-Aspartic acid, 4-methyl ester, hydrochloride (1:1); L-Aspartic acid, 4-methyl ester, hydrochloride; Aspartic acid, 4-methyl ester, hydrochloride, L-; (S)-2-Amino-4-methoxy-4-oxobutanoic acid hydrochloride; L-Aspartic acid β-methyl ester monohydrochloride; β-Methyl L-aspartate hydrochloride. Grades: ≥95%. CAS No. 16856-13-6. Molecular formula: C5H9NO4.HCl. Mole weight: 183.59. | |
| L-Aspartic acid β-naphthylamide | Synonyms: L-Asp-βNA; H-Asp-bNA; L-ASPARTIC ACID A-(B-NAPHTHYLAMIDE); L-ASPARTYL-B-NAPHTHYLAMIDE. Grades: ≥ 98% (TLC). CAS No. 635-91-6. Molecular formula: C14H14N2O3. Mole weight: 258.30. | |
| L-Aspartic acid β-tert-butyl ester | L-Aspartic acid 4-tert-butyl ester is a protected form of L-Aspartic acid. L-Aspartic acid is a non-essential amino acid that is used to biosynthesize other amino acids within the human body. L-Aspartic acid also increases membrane conductance of mammalian neurons by voltage-dependent means, causing depolarization and nerve impulses that travel to key areas of the central nervous system. Synonyms: L-Aspartic acid β-tert-butyl ester; L-aspartic acid 4-tert-butyl ester; (2S)-2-amino-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoic acid. Grades: ≥ 98% (Assay). CAS No. 3057-74-7. Molecular formula: C8H15NO4. Mole weight: 189.20. | |
| L-Aspartic acid β-tert-butyl ester α-allyl ester hydrochloride | Synonyms: L-Asp(OtBu)-OAll HCl; H-Asp(OtBu)-allyl ester; H-ASP(OTBU)-ALLYL ESTER HCl; H-ASP(OTBU)-OAL HCl. Grades: ≥ 98% (NMR). CAS No. 218938-66-0. Molecular formula: C11H19NO4·HCl. Mole weight: 265.76. | |
| L-Aspartic acid β-tert-butyl ester α-amide hydrochloride | Synonyms: L-Asp(OtBu)-NH2 HCl; tert-butyl (3S)-3,4-diamino-4-oxobutanoate hydrochloride. Grades: ≥ 99% (TLC). CAS No. 92786-68-0. Molecular formula: C8H16N2O3·HCl. Mole weight: 224.72. | |
| L-Aspartic acid β-tert-butyl ester α-methyl ester hydrochloride | Synonyms: L-Aspartic acid β-tert-butyl ester α-methyl ester hydrochloride; 4-O-tert-butyl 1-O-methyl(2S)-2-aminobutanedioate hydrochloride; H-Asp(OtBu)-OMe; H-Asp(OtBu)-OMe HCl; H-Asp(OtBu)-OMe hydrochloride; H-Asp(OtBu)-OMe HCl. Grades: ≥ 98.5% (HPLC). CAS No. 2673-19-0. Molecular formula: C9H17NO4·HCl. Mole weight: 239.70. | |
| L-Aspartic acid dibenzyl ester 4-toluenesulfonate salt | L-Aspartic acid dibenzyl ester p-toluenesulfonate salt is used in the preparation of Betulinic acid derivatives that show inhibition towards HIV. It is also used in the preparation of piperidine functional amides which act as potent and highly selective human β3 agonists. Synonyms: L-Asp(OBzl)-OBzl TosOH; L-aspartic acid dibenzyl ester p-toluenesulfonate salt; H-Asp(OBzl)-OBzl Tos-OH; 1,4-Dibenzyl L-Aspartate p-Toluenesulfonate; L-Aspartic Acid 1,4-Dibenzyl Ester p-Toluenesulfonate. Grades: ≥ 99% (HPLC). CAS No. 2886-33-1. Molecular formula: C18H19NO4·C7H8O3S. Mole weight: 485.60. | |
| L-Aspartic acid diethyl ester hydrochloride | Synonyms: L-Asp(OEt)-OEt HCl; H-ASP(OET)-OET HCl; H-Asp(OEt)-OEt hydrochloride; Diethyl L-Aspartate Hydrochloride; L-Aspartic Acid Diethyl Ester Hydrochloride. Grades: ≥ 99% (HPLC). CAS No. 16115-68-7. Molecular formula: C8H15NO4·HCl. Mole weight: 225.62. | |
| L-Aspartic acid dimethyl ester hydrochloride | Synonyms: L-Asp(OMe)-OMe HCl; Dimethyl L-Asparaginate Hydrochloride; L-Asparaginic Acid Dimethyl Ester Hydrochloride; H-Asp(OMe)-OMe HCl; (S)-Aminosuccinic Acid Dimethyl Ester Hydrochloride; Dimethyl L-Aspartate Hydrochloride. Grades: ≥ 98% (HPLC). CAS No. 32213-95-9. Molecular formula: C6H11NO4·HCl. Mole weight: 197.66. | |
| L-Aspartic acid di-tert-butyl ester hydrochloride | Synonyms: L-Asp(OtBu)-OtBu HCl; L-Aspartic acid di-tert-butyl ester hydrochloride; H-Asp(OtBu)-OtBu HCl; aspartic acid di-t-butyl ester hydrochloride; (S)-Di-tert-butyl 2-aminosuccinate hydrochloride; H-Asp(OtBu)-OtBu HCl. Grades: ≥ 99% (HPLC). CAS No. 1791-13-5. Molecular formula: C12H23NO4·HCl. Mole weight: 281.78. | |
| L-Aspartic acid sodium salt monohydrate | Synonyms: Sodium-L-aspartate; (S)-Aminobutanedioic acid sodium salt monohydrate; L-2-Aminobutanedioic acid sodium salt monohydrate; Sodium aspartate monohydrate; Sodium l-aspartate monohydrate; L-Aspartic acid, monosodium salt, monohydrate; (S)-2-Aminobutanedioic acid sodium salt; Sodium L-aspartate hydrate; sodium;(2S)-2-amino-4-hydroxy-4-oxobutanoate hydrate. Grades: 98.5-101.0%. CAS No. 323194-76-9. Molecular formula: C4H5NO4Na·H2O. Mole weight: 173.10. | |
| L-Aspartic α-amide β-t-butyl ester | Synonyms: H-Asp(OtBu)-NH2; H-IsoAsn-OtBu; L-Isoasparagine β-t-butyl ester. CAS No. 79009-38-4. Molecular formula: C8H16N2O3. Mole weight: 188.22. | |
| L-Aspartic α-amide hydrate | Synonyms: H-Asp-NH2 H2O; H-IsoAsn-OH H2O; L-Isoasparagine hydrate. CAS No. 210816-76-5. Molecular formula: C4H10N2O4. Mole weight: 150.13. | |
| Lateropyrone | An unusual heterocyclic metabolite isolated from fusarium avenaceum with antibacterial and antifungal activity. Synonyms: Avenacein Y. Grades: >99% by HPLC. CAS No. 93752-78-4. Molecular formula: C15H10O8. Mole weight: 318.23. | |
| Lavanducyanin | Lavanducyanin is a testosterone 5 alpha-reductase inhibitor isolated from Streptomyces sp. No. 9659. It exhibits weak activity against gram-positive bacteria. Synonyms: WS-9659 A; WS-9659A; WS 9659 A. CAS No. 122228-60-8. Molecular formula: C22H24N2O. Mole weight: 332.4. | |
| Lavendamycin | It is produced by the strain of Str. lavendulae C-22030. It's a quinone antibiotic. It has anti-bacterial and fungal effect, but the anti-bacterial effect is weaker than Streptonigrin, while the anti-fungal effect is stronger than Streptonigrin. Synonyms: 9H-Pyrido(3,4-b)indole-3-carboxylic acid, 1-(7-amino-5,8-dihydro-5,8-dioxo-2-quinolinyl)-4-methyl-; Antibiotic K 82A. CAS No. 81645-09-2. Molecular formula: C22H14N4O4. Mole weight: 398.38. | |
| Lavendomycin | It is produced by the strain of Str. lavendulae subsp. brasillicus. It has strong activity against Staphylococcus aureus, Staphylococcus epidermococcus and Streptococcus faecalis with ED50 (mg/kg) of 2.33, 1.68 and 13.2, respectively (In vivo test in mice, abdominal infection, subcutaneous administration). It has no anti-gram-negative bacteria and fungi activity. Synonyms: Antibiotic FR 900201; ( (Z) -2- ( (S) -1- ( (S) -1- ( (2S, 3R) -3-amino-2- ( (2S, 3R) -2-amino-5-guanidino-3-methylpentanamido) butanoyl) piperidine-2-carbonyl) pyrrolidine-2-carboxamido) but-2-enoyl) -L-serine. Grades: ≥95%. CAS No. 82987-09-5. Molecular formula: C29H50N10O8. Mole weight: 666.78. | |
| L-β-Homoalanine hydrochloride | Synonyms: L-β-HomoAla-OH HCl; (S)-3-Aminobutyric acid hydrochloride; L-beta-Homoalanine hydrochloride; (s)-3-aminobutanoic acid hydrochloride; (S)-HOMO-BETA-ALANINE HCl; L-Beta-homoalanine HCl; (S)-3-amino-butanoic acid hydrochloride; Butanoic acid,3-amino-, hydrochloride (1:1), (3S)-; (3S)-3-aminobutanoic acid hydrochloride; L beta HomoAla OH HCl. Grades: ≥ 98% (NMR). CAS No. 58610-41-6. Molecular formula: C4H9NO2·HCl. Mole weight: 139.58. | |
| L-β-Homoisoleucine hydrochloride | Synonyms: L-β-HomoIle-OH HCl; (3R,4S)-3-Amino-4-methylhexanoic acid hydrochloride; L-beta-Homoisoleucine hydrochloride; h-b-Homoisoleucine HCl; l-beta-homoisoleucine HCl; L-Beta-homoisoleucine HCl; (2S,4R)-4-Hydroxy-2-pyrrolidinylacetic acid hydrochloride; 2-((2S,4R)-4-Hydroxypyrrolidin-2-yl)acetic acid hydrochloride; L beta HomoIle OH HCl. Grades: ≥ 98%. CAS No. 219310-10-8. Molecular formula: C7H15NO2·HCl. Mole weight: 181.66. | |
| L-β-Homoleucine | Synonyms: H-Leu-(C#CH2)OH; H-β-homoLeu-OH; (S)-3-Amino-5-methylhexanoic acid. Grades: 95%. CAS No. 22818-43-5. Molecular formula: C7H15NO2. Mole weight: 145.20. | |
| L-β-Homolysine dihydrochloride | Synonyms: Heptanoic acid, 3,7-diamino-, hydrochloride (1:2), (3S)-; Heptanoic acid, 3,7-diamino-, dihydrochloride, (3S)-; (3S)-3,7-Diaminoheptanoic acid dihydrochloride; (S)-3,7-Diaminoheptanoic acid dihydrochloride. CAS No. 290835-83-5. Molecular formula: C7H18Cl2N2O2. Mole weight: 233.14. | |
| L-β-Homomethionine hydrochloride | Synonyms: L-β-Homomethionine hydrochloride; L-β-HomoMet-OH HCl. Grades: ≥ 98% by NMR. CAS No. 336182-07-1. Molecular formula: C6H14ClNO2S. Mole weight: 199.7. | |
| L-β-Homophenylalanine | Synonyms: H-Phe-(C#CH2)OH; H-β-homoPhe-OH; (S)-3-Amino-4-phenylbutanoic acid. Grades: 95%. CAS No. 26250-87-3. Molecular formula: C10H13NO2. Mole weight: 179.20. | |
| L-β-Homophenylalanine hydrochloride | Synonyms: L-β-HomoPhe-OH HCl; (S)-3-Amino-4-phenylbutyric acid hydrochloride; L-beta-Homophenylalanine hydrochloride; H-beta-HoPhe-OH HCl; (3S)-3-amino-4-phenylbutanoic acid hydrochloride; Benzenebutanoic acid, beta-amino-, hydrochloride (1:1), (betaS)-; (S)-3-AMINO-4-PHENYLBUTANOIC ACID HCl; H beta HoPhe OH HCl. Grades: ≥ 98% (Assay). CAS No. 138165-77-2. Molecular formula: C10H13NO2·HCl. Mole weight: 215.68. | |
| L-β-Homophenylglycine hydrochloride | Synonyms: H-Phg-(C#CH2)OH HCl; H-β-Phe-OH HCl; (R)-3-Amino-3-phenylpropanoic acid hydrochloride. Grades: ≥ 99% (Assay). CAS No. 83649-48-3. Molecular formula: C9H12ClNO2. Mole weight: 201.65. | |
| L-β-Homoserine | Synonyms: L-β-HomoSer-OH; L-3-Amino-4-hydroxy-butyric acid; (R)-3-Amino-4-hydroxy-butyric acid; L-beta-Homoserine; (3R)-3-amino-4-hydroxybutanoic acid; H-L-beta-HSer-OH; beta-Homoserine; Butanoic acid, 3-amino-4-hydroxy-, (3R)-; (+)-3-amino-4-hydroxybutyric acid; (+)-4-Hydroxy-3-aminobutyric acid; H L beta HSer OH. Grades: ≥ 98% (NMR). CAS No. 16504-56-6. Molecular formula: C4H9NO3. Mole weight: 119.12. | |
| L-β-Homothreonine | Synonyms: H-Thr-(C#CH2)OH; H-β-homoThr-OH; (3R,4R)-3-Amino-4-hydroxypentanoic acid. CAS No. 192003-00-2. Molecular formula: C5H11NO3. Mole weight: 133.15. | |
| L-beta-homotryptophan | Cas No. 192003-01-3. Molecular formula: C12H14N2O2. Mole weight: 218.25. | |
| L-β-Homotryptophan hydrochloride | Synonyms: L-β-HomoTrp-OH HCl; (S)-3-Amino-4-(3-indolyl)butyric acid hydrochloride; L-beta-Homotryptophan hydrochloride; l-beta-homotryptophan HCl; (3S)-3-amino-4-(1H-indol-3-yl)butanoic Acid Hydrochloride; H-b-HoTrp-OH; middot HCl; L-beta-Homo-Trp-OH HCl; L-Beta-homotryptophan HCl; L beta Homo Trp OH HCl. Grades: ≥ 98%. CAS No. 339994-86-4. Molecular formula: C12H14N2O2·HCl. Mole weight: 254.72. | |
| L-β-Homotyrosine hydrochloride | Synonyms: H-Tyr-(C#CH2)OH HCl; H-β-homoTyr-OH HCl; (S)-3-Amino-4-(4-hydroxyphenyl)butanoic acid hydrochloride. Grades: ≥ 95%. CAS No. 336182-13-9. Molecular formula: C10H14ClNO3. Mole weight: 231.68. | |
| L-β-indanylglycine | Synonyms: L-2-Indanylgly-OH. Grades: ≥ 99% (HPLC). CAS No. 155239-51-3. Molecular formula: C11H13NO2. Mole weight: 191.30. | |
| L-β-Leucine hydrochloride | Synonyms: L-β-Leu-OH HCl; (R)-3-Amino-4-methylpentanoic acid hydrochloride; L-β-Homovaline hydrochloride; L-beta-Homovaline hydrochloride; L-beta-Leucine hydrochloride; (3R)-3-amino-4-methylpentanoic acid hydrochloride; J-501244; H-L-beta-Leu-OH HCl; L-Beta-homovaline HCl; H L beta Leu OH HCl. Grades: ≥ 98% (NMR). CAS No. 219310-09-5. Molecular formula: C6H13NO2·HCl. Mole weight: 167.64. | |
| L-b-Homothreonine hydrochloride | Synonyms: L-b-HomoThr-OH HCl; (3R,4R)-3-Amino-4-hydroxy-pentanoic acid hydrochloride; L-beta-Homothreonine hydrochloride; (3R,4R)-3-AMINO-4-HYDROXYPENTANOIC ACID HCl; H-L-Beta-homothr-oh HCl; L-beta-Homo-Thr-OH HCl; L beta Homo Thr OH HCl. Grades: ≥ 95% (HPLC). CAS No. 336182-14-0. Molecular formula: C5H11NO3·HCl. Mole weight: 169.61. | |
| L-Citrulline 7-amido-4-methylcoumarin trifluoroacetate | Synonyms: (S)-2-Amino-N-(4-methyl-2-oxo-2H-chromen-7-yl)-5-ureidopentanamide 2,2,2-trifluoroacetate; H-Cit-AMC yenTFA. CAS No. 201851-46-9. Molecular formula: C16H20N4O4·C2HF3O2. Mole weight: 446.38. | |
| L-Citrulline β-naphthylamide hydrobromide | Synonyms: L-Cit-βNA HBr; (S)-2-Amino-5-ureidopentanoic acid; β-naphthylamide hydrobromide; L-Orn(carbamoyl)-βNA HBr. Grades: ≥ 99% (TLC). CAS No. 201988-71-8. Molecular formula: C16H20N4O2·HBr. Mole weight: 381.43. | |
| L-Cyclopentylglycine | Synonyms: Gly(cyclopentyl)-OH; (S)-Amino-cyclopentyl-acetic acid. Grades: ≥ 99% (Assay). CAS No. 2521-84-8. Molecular formula: C7H13NO2. Mole weight: 143.10. | |
| L-Cysteic acid monohydrate | A major metabolite of non-essential amino acid L-Cysteine. Synonyms: 3-Sulfo-L-alanine Monohydrate; (R)-2-Amino-3-sulfopropanoic Acid Monohydrate. Grades: 98%. CAS No. 23537-25-9. Molecular formula: C3H9NO6S. Mole weight: 187.17. | |
| L-Cystine bis-4-nitroanilide | A substrate for measuring cystyl-aminopeptidase. Synonyms: (H-L-Cys-pNA)2; L-CYSTINE BIS-P-NITROANILIDE; cystine-bis-4-nitroanilide; L-CYSTINYL-BIS-4-NITROANILIDE. Grades: 95%. CAS No. 34199-07-0. Molecular formula: C18H20N6O6S2. Mole weight: 480.50. | |
| L-Cystine bis(allyl ester) bis(p-toluenesulfonate) (Disulfide bond) | Synonyms: (H-Cys-allyl ester)2 2Tos-OH (Disulfide bond). CAS No. 142601-71-6. Molecular formula: C26H36N2O10S4. Mole weight: 664.83. | |
| L-Cystine bis-amide dihydrochloride | Synonyms: (H-L-Cys-NH2)2 2HCl; L-Cystine 2HCl; L-Cystine dihydrochloride. Grades: 95%. CAS No. 22671-21-2. Molecular formula: C6H14N4O2S2·2HCl. Mole weight: 311.26. | |
| L-Cystine bis(β-naphthylamide) | Synonyms: (H-L-Cys-βNA)2L-3,3'-Dithiobis(2-amino-N-2-naphthylpropionamide); (H-CYS-BETANA)2; L-Cystine-di-2-naphthylamide. Grades: 95%. CAS No. 1259-69-4. Molecular formula: C26H26N4O2S2. Mole weight: 490.65. | |
| L-Cystine bis(β-naphthylamide) dihydrochloride | Synonyms: (H-L-Cys-βNA)2 2HCl; L-cystine-di-2-naphthylamide dihydrochloride. Grades: 95%. CAS No. 100900-22-9. Molecular formula: C26H26N4O2S2·2HCl. Mole weight: 563.57. | |
| L-Cystine bis-ethyl ester dihydrochloride(Disulfide Bond) | Synonyms: (H-L-Cys-OEt)2 2HCl; [3-[(2-azaniumyl-3-ethoxy-3-oxopropyl)disulfanyl]-1-ethoxy-1-oxopropan-2-yl]azanium,dichloride; L-Cystin-diethylester; L-cistine diethyl ester dihydrochloride; diethyl L-cystinate dihydrochloride; (H-Cys-OEt)2 2HCl,(Disulfide bond); L-Cystin-diaethylester,Hydrochloride. Grades: ≥ 99% (TLC). CAS No. 22735-07-5. Molecular formula: C10H20N2O4S2·2HCl. Mole weight: 369.33. | |
| L-Cystine bis(tert-butyl ester) dihydrochloride | Synonyms: (H-L-Cys-OtBu)2 2HCl; tert-butyl (2R)-2-amino-3-[[(2R)-2-amino-3-[(2-methylpropan-2-yl)oxy]-3-oxopropyl]disulfanyl]propanoate, dihydrochloride; (2R,2'R)-Di-tert-butyl 3,3'-disulfanediylbis(2-aminopropanoate) dihydrochloride. Grades: ≥ 97% (TLC). CAS No. 38261-78-8. Molecular formula: C14H28N2O4S2·2HCl. Mole weight: 425.44. | |
| Lenoremycin | It is a polyether antibiotic produced by the strain of Streptomyces hygroscopicus A-130. It has the effect of anti-gram-positive bacteria, mycobacterium and protozoa, and can be used as a feed additive to control Eimeriatenella infection. Synonyms: Antibiotic A-130A; A-130A; Antibiotic Ro 21 6150; Dianemycin, 10-demethyl-19-de[(tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)oxy]-12-methyl-11-O-(tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)-, [11(2R,5S,6R),12R]-; 6-Nonenoic acid, 8-[2,4',10,10'-tetramethyl-2'-[tetrahydro-6-hydroxy-6-(hydroxymethyl)-3,5-dimethyl-2H-pyran-2-yl]-9-[(tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)oxy][2,7'-bi-1,6-dioxaspiro[4.5]dec]-7-yl]-2,4,6-trimethyl-5-oxo-, [2S-[2a[2'S*, 4'R*, 5'S*, 7'S*[2R*, 5S*, 7R*(2R*, 4S*, 6E, 8R*), 9S*(2S*, 5R*, 6S*), 10S*], 10'S*], 3b, 5b, 6b]]-. CAS No. 51257-84-2. Molecular formula: C47H78O13. Mole weight: 851.11. | |
| Lenoremycin sodium | It is a polyether antibiotic produced by the strain of Streptomyces hygroscopicus A-130. It has the effect of anti-gram-positive bacteria, mycobacterium and protozoa, and can be used as a feed additive to control Eimeriatenella infection. Synonyms: Antibiotic A130 sodium salt; Dianemycin, 10-demethyl-19-de((tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)oxy)-12-methyl-11-O-(tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)-, monosodium salt, (11(2R,5S,6R),12R)-; Antibiotic A-130A Sodium salt. CAS No. 58399-44-3. Molecular formula: C47H77NaO13. Mole weight: 873.10. | |
| Leptocillin | Leptocillin is extracted from Leptoaphaeria sp. L-179. It is resistant to several Gram-positive bacteria (Staphylococcus aureus 209P, Bacillus subtilis No. 119) and several Gram-negative bacteria (Klebsiella pneumoniae 22 # 3038, proteus singular GN310). Synonyms: Antibiotic MK4588; MK 4588; MK-4588; 7-(1-Isocyano-2-(4-methoxyphenyl))ethenyl-1-hydroxy-7-isocyanobicyclo(4,2,0)oct-2-en-4-one. CAS No. 123949-57-5. Molecular formula: C19H16N2O3. Mole weight: 320.34. | |
| Leptofuranin A | It is produced by the strain of Str. tanashiensis. At low concentrations, it causes the stagnation of normal cells, but it can cause the death of transformed cells. Molecular formula: C32H48O5. Mole weight: 512.72. | |
| Leptofuranin B | It is produced by the strain of Str. tanashiensis. At low concentrations, it causes the stagnation of normal cells, but it can cause the death of transformed cells. Molecular formula: C33H50O5. Mole weight: 526.75. | |
| Leptofuranin C | It is produced by the strain of Str. tanashiensis. At low concentrations, it causes the stagnation of normal cells, but it can cause the death of transformed cells. Molecular formula: C32H46O5. Mole weight: 510.70. | |
| Leptofuranin D | It is produced by the strain of Str. tanashiensis. At low concentrations, it causes the stagnation of normal cells, but it can cause the death of transformed cells. Molecular formula: C33H48O5. Mole weight: 524.73. | |
| Leptolstatin | It is produced by the strain of Str. sp. SAM1595. It has no activity against bacteria, fungi and yeast, in addition to Millet wine schizozoite yeast (MIC is 0.4 μg/mL). It has a strong inhibitory effect on mammalian cells, such as normal fibroblast 3Y1 cells in rats (IC50 is 0.4 ng/mL). Synonyms: 2H-Pyran-2-one, 6-[(1E, 3Z, 5R, 7E, 9E, 11R, 13S, 14R, 15S, 17E)-14, 19-dihydroxy-3, 5, 9, 11, 13, 15, 17-heptamethyl-12-oxo-1, 3, 7, 9, 17-nonadecapentaen-1-yl]-5, 6-dihydro-, (6R)-; (R)-6-((1E, 3Z, 5R, 7E, 9E, 11R, 13S, 14R, 15S, 17E)-14, 19-dihydroxy-3, 5, 9, 11, 13, 15, 17-heptamethyl-12-oxononadeca-1, 3, 7, 9, 17-pentaen-1-yl)-5, 6-dihydro-2H-pyran-2-one. CAS No. 149633-91-0. Molecular formula: C31H46O5. Mole weight: 498.69. | |
| Leptomycin A | a potent anti-fungal antibiotic. Leptomycin A is a highly specific inhibitor of export protein CRM1. Synonyms: Jildamycin; Antibiotic ATS 1287A; Antibiotic PD 118607; 2,10,12,16,18-Nonadecapentaenoic acid, 19-(3,6-dihydro-3-methyl-6-oxo-2H-pyran-2-yl)-3,5,7,9,11,15,17-heptamethyl-6-hydroxy-8-oxo-. Grades: >99% by HPLC. CAS No. 87081-36-5. Molecular formula: C32H46O6. Mole weight: 526.71. | |
| Leptosin I | It is produced by the strain of I Leptosphaeria sp. OUPS-4. In order to understand its cytotoxic effects, someone tested Leukemia lymphocyte P388 in culture with an ED50 of 1.13 μg/mL. Synonyms: Chaetocin, 2,5:2',5'-dide(epidithio)-19'-deoxy-2',5'-(epitetrathio)-5,6'-epoxy-6-hydroxy-19',19'-dimethyl-, (5alpha,6S,6'S,15alpha)-; (+)-Leptosin I; 22bH-18, 22a-(Iminomethano)-10b, 23a-methano-10bH, 23aH-indolo[2'', 3'':2', 3'][1, 2, 3, 4, 6]tetrathiazocino[6'', 5'':1', 5']pyrrolo[3', 4':6, 7]pyrazino[2''', 1''':2, 3][1, 3]oxazepino[4, 5-b]indole-1, 4, 17, 25(18H)-tetrone, 2, 3, 5a, 6, 15, 15a-hexahydro-24-hydroxy-3-(hydroxymethyl)-2, 26-dimethyl-18-(1-methylethyl)-, (3a, 5ab, 10ba, 10cS*, 15ab, 18b, 22ab, 22ba, 23aa, 24S*)-(+)-; Leptosine I. CAS No. 160472-96-8. Molecular formula: C32H32N6O7S4. Mole weight: 740.89. | |
| Leptosin J | It is produced by the strain of J Leptosphaeria sp. OUPS-4. In order to understand its cytotoxic effects, someone tested Leukemia lymphocyte P388 in culture with an ED50 of 1.25 μg/mL. Synonyms: Chaetocin, 2,5:2',5'-dide(epidithio)-19'-deoxy-2',5'-(epitetrathio)-5,6'-epoxy-6-hydroxy-19',19'-dimethyl-, (2alpha,5alpha,6S,6'S,15alpha)-; 22bH-18, 22a-(Iminomethano)-10b, 23a-methano-10bH, 23aH-indolo[2'', 3'':2', 3'][1, 2, 3, 4, 6]tetrathiazocino[6'', 5'':1', 5']pyrrolo[3', 4':6, 7]pyrazino[2''', 1''':2, 3][1, 3]oxazepino[4, 5-b]indole-1, 4, 17, 25(18H)-tetrone, 2, 3, 5a, 6, 15, 15a-hexahydro-24-hydroxy-3-(hydroxymethyl)-2, 26-dimethyl-18-(1-methylethyl)-, (3a, 5aa, 10bb, 10cR*, 15aa, 18a, 22aa, 22bb, 23ab, 24R*)-(+)-; Leptosine J. CAS No. 160550-15-2. Molecular formula: C32H32N6O7S4. Mole weight: 740.89. | |
| L-Ethionine | Ethionine is an antimetabolite and methionine antagonist. It also produces liver neoplasms. Uses: Ethionine-induced inhibition of protein synthesis and lowering of atp level in the liver. Synonyms: H-Eth-OH; (S)-2-Amino-4-(ethylthio)butanoic acid. Grades: 98%. CAS No. 13073-35-3. Molecular formula: C6H13NO2S. Mole weight: 163.24. | |
| Leu-Ala-OH | This dipeptide inhibits ubiquitin-mediated protein degradation. Synonyms: L-Leucyl-L-alanine. Grades: ≥ 97% (HPLC). CAS No. 7298-84-2. Molecular formula: C9H18N2O3. Mole weight: 202.25. | |
| Leucanicidin | It is produced by the strain of Streptomyces. It is a potent nematocide and insecticide belonging to the bafilomycin class. It also has anti-fungal properties. Synonyms: (3Z,5E,7R,8S,9S,11E,13E,15S,16R)-16-[(1S,2R,3S)-3-[(2R,4R,5S,6R)-4-[(6-deoxy-2-O-methyl-α-L-mannopyranosyl)oxy]tetrahydro-2-hydroxy-5-methyl-6-(1-methylethyl)-2H-pyran-2-yl]-2-hydroxy-1-methylbutyl]-8-hydroxy-3,15-dimethoxy-5,7,9,11-tetramethyl-oxacyclohexadeca-3,5,11,13-tetraen-2-one; 21-O-De(3-carboxy-1-oxo-2-propenyl)-2-demethyl-21-O-(6-deoxy-2-O-methyl-α-L-mannopyranosyl)-2-methoxy-24-methylhygrolidin. Grades: >95% by HPLC. CAS No. 91021-66-8. Molecular formula: C42H70O13. Mole weight: 783.00. | |
| Leucine benzyloxycarbonylhydrazide trifluoroacetate | Synonyms: L-Leu-NHNHZ TFA; L-Leucin-benzyloxycarbonyl-hydrazid-trifluoracetate; H-L-Leu-NH-NH-Z,CF3-COOH; LEU-NHNH-Z TFA; Leu-NH-NH-Z CF3COOH. Grades: ≥ 99% (HPLC). CAS No. 19635-96-2. Molecular formula: C14H21N3O3·C2HO2F3. Mole weight: 393.40. | |
| Leucinostatin A | It is produced by the strain of Paecilomyces lilacinus A-267. It's a peptide antibiotic. It has a strong anti-pathogenic and non-pathogenic yeast and fungi activity, but also has a medium anti-bacterial effect. It was previously reported that Leucinostatin A and B mixtures inhibited HeLa cells. 0.05 μg/mL of Leucinostatin A for a week (0.25 mg/kg?d) has inhibitory effect on the airy ascites carcinoma entity type, and for ascites type is invalid. Synonyms: Antibiotic 1907-VIII; Antibiotic CC 1014; Paecilotoxin A; Antibiotic P-168; beta-Alaninamide, cis-4-methyl-1-(4-methyl-1-oxo-2-hexenyl)-L-prolyl-(4S,6S)-6-hydroxy-4-methyl-8-oxo-L-2-aminodecanoyl-threo-3-hydroxy-L-leucyl-2-methylalanyl-L-leucyl-L-leucyl-2-methylalanyl-2-methylalanyl-N-(2-(dimethylamino)-1-methylethyl)-, (1(S-(E)),9(S))-; Tryanocidin. Grades: >95% by HPLC. CAS No. 76600-38-9. Molecular formula: C62H111N11O13. Mole weight: 1218.61. | |
| Leucinostatin B | It is produced by the strain of Paecilomyces lilacinus A-267. It's a peptide antibiotic. It has a strong anti-pathogenic and non-pathogenic yeast and fungi activity, but also has a medium anti-bacterial effect. It was previously reported that Leucinostatin A and B mixtures inhibited HeLa cells. 0.05 μg/mL of Leucinostatin B for a week (0.25 mg/kg?d) has inhibitory effect on the airy ascites carcinoma entity type, and for ascites type is invalid. Synonyms: Paecilotoxin B; Leucinostatin A, 9-[N-[1-methyl-2-(methylamino)ethyl]-b-alaninamide]-, [9(S)]-; Antibiotic 1907-II; b-Alaninamide, cis-4-methyl-1-(4-methyl-1-oxo-2-hexenyl)-L-prolyl-(4S,6S)-6-hydroxy-4-methyl-8-oxo-L-2-aminodecanoyl-threo-3-hydroxy-L-leucyl-2-methylalanyl-L-leucyl-L-leucyl-2-methylalanyl-2-methylalanyl-N-[1-methyl-2-(methylamino)ethyl]-, [1[S-(E)],9(S)]-. Grades: >95%. CAS No. 76663-52-0. Molecular formula: C61H109N11O13. Mole weight: 1204.58. | |
| Leucinostatin D | It is produced by the strain of Paecilomyces marquandii. It's a peptide antibiotic. It has anti-gram-positive bacterial and fungal effects. It has in vitro cytotoxic activity against HeLa 850, KB cells and sensitive leukemia cells P388 with ID50 of 1.00 ng/mL. Synonyms: Paecilotoxin D; (4R) -N- [1- [ [2-hydroxy-3-methyl-1- [2- [ [3-methyl-1- [ [3-methyl-1- [2- [2- [2- (1-methylaminopropan-2-ylcarbamoyl) ethylcarbamoyl] propan-2-ylcarbamoyl] propan-2-ylcarbamoyl] butyl] carbamoyl] butyl] carbamoyl] propan-2-ylcarbamoyl] butyl] carbamoyl] -3-methyl-butyl] -4-methyl-1- [ (E, 4S) -4-methylhex-2-enoyl] pyrrolidine-2-carboxamide. CAS No. 100334-47-2. Molecular formula: C56H101N11O11. Mole weight: 1104.47. | |
| Leucinostatin H | It is produced by the strain of Paecilomyces marquandii. It's a peptide antibiotic. It has anti-gram-positive bacterial and fungal effects. Synonyms: Paecilotoxin H; N-(1-(aminooxy)-26-(1-hydroxy-2-methylpropyl)-17,20-diisobutyl-4,11,11,14,14,23,23,31-octamethyl-6,10,13,16,19,22,25,28-octaoxo-5,9,12,15,18,21,24,27-octaazadotriacontan-29-yl)-4-methyl-1-((R,E)-4-methylhex-2-enoyl)pyrrolidine-2-carboxamide; Leucinostatin A, 2-L-leucine, N9-oxide. CAS No. 109539-58-4. Molecular formula: C57H103N11O12. Mole weight: 1134.49. | |
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