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3-O-Demethyl-2'-N-glylfortimicin B
3-O-Demethyl-2'-N-glylfortimicin B is an aminoglycoside antibiotic produced by Micromonospora olvoasterospora MK-70, MK-80 and Mm 744. CAS No. 71640-65-8. Molecular formula: C16H33N5O6. Mole weight: 391.46.
3-O-Demethylfortimicin A
3-O-Demethylfortimicin A is an aminoglycoside antibiotic produced by Micromonospora olvoasterospora MK-70 and Mm 744. It has anti-gram-positive and negative bacteria activity. Synonyms: A 49759. CAS No. 74842-47-0. Molecular formula: C16H33N5O6. Mole weight: 391.46.
3-O-Demethylfortimicin KE
3-O-Demethylfortimicin KE is an aminoglycoside antibiotic produced by Micromonospora olvoasterospora MK-70, MK-80 and Mm 744. CAS No. 74667-48-4. Molecular formula: C13H28N4O5. Mole weight: 320.38.
3-O-Demethylmonensin A
3-O-Demethylmonensin A is a polyether antibiotic produced by Streptomyces cinnamonensis LO-63. Synonyms: 3-O-Demethylmonensin. CAS No. 92096-16-7. Molecular formula: C35H60O11. Mole weight: 656.84.
3-O-Demethylmonensin B
3-O-Demethylmonensin B is a polyether antibiotic produced by Streptomyces cinnamonensis LO-63. Synonyms: 3-Hydroxy-4-(9-hydroxy-2-{5'-[6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-2,3'-dimethyl[2,2'-bioxolan]-5-yl}-2,8-dimethyl-1,6-dioxaspiro[4.5]decan-7-yl)-2-methylpentanoic acid. CAS No. 109345-56-4. Molecular formula: C34H58O11. Mole weight: 642.82.
3'-O-Demethyl mutactimycin
3'-O-Demethyl mutactimycin is produced by Nocardia transvalensis. It has moderate anti-Gram-positive bacteria activity and anti-tumor cell activity such as P388, L1210 and HeLa. Molecular formula: C27H30O11. Mole weight: 530.52.
3-O-Demethylscensidin
It is a new chlorine-containing depsidone from Lichens. CAS No. 86191-24-4. Molecular formula: C16H12Cl2O5. Mole weight: 355.17.
3'-O-Forosaminyl-griseusin A
Produced by the strain of Streptomyces griseus MJ361-48F3, it showed activity against gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA) with MIC of 0.39-1.56 μg/mL. Synonyms: 3'-O-alpha-D-Forosaminyl-(+)-griseusin A; OF-griseusin A. CAS No. 158268-23-6. Molecular formula: C30H35NO11. Mole weight: 585.60.
3-O-methylexfoliamycin
3-O-methylexfoliamycin is a naphthoquinone antibiotic produced by Streptomyces exfoliamycin Tu 1424. Activity against gram-positive bacteria. CAS No. 148084-38-2. Molecular formula: C23H28O9. Mole weight: 448.46.
(3S,3aR,7S,8S,8aS)-2,3,4,7,8,8a-Hexahydro-6,8-dimethyl-8-(4-methylpentyl)-1H-3a,7-methanoazulene-3-methanol. CAS No. 145631-64-7. Molecular formula: C20H34O. Mole weight: 290.48.
3-Trehalosamine
3-Trehalosamine is originally isolated from Nocardiopsis trehalosis sp. nov. NRRL 12026. It has a weak anti-Gram-positive bacteria effect. Synonyms: hexopyranosyl 3-amino-3-deoxyhexopyranoside; 3-Amino-3-deoxy-alpha-D-glucopyranosyl-alpha-D-glucopyranoside. CAS No. 75060-25-2. Molecular formula: C12H23NO10. Mole weight: 341.31.
(3Z)-Cembrene A
It has been isolated from the heads of soldier termites, Cubitermes umbratus. Synonyms: Cembrene A, (3Z)-; (3Z)-Cembren A; (1E,5E,9Z)-12-Isopropenyl-1,5,9-trimethyl-cyclotetradeca-1,5,9-triene; 1,5,9-Cyclotetradecatriene, 1,5,9-trimethyl-12-(1-methylethenyl)-, (Z,E,E)-; 1,5,9-Cyclotetradecatriene, 1,5,9-trimethyl-12-(1-methylethenyl)-, (Z,E,E)-(±)-. CAS No. 73246-00-1. Molecular formula: C20H32. Mole weight: 272.47.
44-HomooIigomycin A is an antitumor antibiotic produced by Streptomyces bottropensis. It has activity against fungi such as Aspergillus, Penicillium and Fusarium, but not against yeast and bacteria. It has moderate anti-tumor activity against Colon 26 in vivo. Synonyms: 26-Demethyl-26-ethyloligomycin; NK86-0279 II. CAS No. 132707-68-7. Molecular formula: C46H76O11. Mole weight: 805.09.
44-HomooIigomycin B
44-HomooIigomycin B is an antitumor antibiotic produced by Streptomyces bottropensis. It has activity against fungi such as Aspergillus, Penicillium and Fusarium, but not against yeast and bacteria. It has moderate anti-tumor activity against Colon 26 in vivo. Synonyms: 26-Demethyl-26-ethyl-28-oxooligomycin A; NK86-0279 I. CAS No. 125616-18-4. Molecular formula: C46H74O12. Mole weight: 819.07.
4,5,14-Triacetylberkeylactone F
4,5,14-Triacetylberkeylactone F.
4,5,7-Trichlorolichexanthone
4,5,7-Trichlorolichexanthone is a xanthone compound. Molecular formula: C16H11Cl3O5. Mole weight: 389.61.
4,5-Dichloro-3-O-methylnorlichexanthone
4,5-Dichloro-3-O-methylnorlichexanthone is a lichen xanthone. Molecular formula: C15H10Cl2O5. Mole weight: 341.14.
4,5-Dichlorolichexanthone
It is a member of xanthones. Synonyms: 4,5-Dichloro-1-hydroxy-3,6-dimethoxy-8-methyl-9H-xanthen-9-one. CAS No. 68048-37-3. Molecular formula: C16H12Cl2O5. Mole weight: 355.17.
4-Amino-3-hydroxybenzoic acid (CAS# 2374-03-0) is disubsituted benzoic acid used in the preparation of various pharmaceutical compounds such as sphingosine kinase inhibitors. Synonyms: benzoic acid, 4-amino-3-hydroxy-; 3-hydroxy-4-aminobenzoic acid. Grade: 98.0%. CAS No. 2374-03-0. Molecular formula: C7H7NO3. Mole weight: 153.1.
4-Bromo-calcimycin, a halogenated analog of A-2318, is a non-fluorescent Ca2+ ionophore which could be commonly used in fluorescent probes experiments as a modutor of the quantitation of free Ca2+. Nonfluorescent calcium ionophore used as a calibration standard for determining cytoplasmic calcium ions by fluorescent probes. Synonyms: A23187, 4-Bromo; 4-Bromocalcimycin; 4-Benzoxazolecarboxylic acid. Grade: ≥98%. CAS No. 76455-48-6. Molecular formula: C29H36BrN3O6. Mole weight: 602.50.
4-Chloro-6-O-methylnorlichexanthone
4-Chloro-6-O-methylnorlichexanthone is a xanthone compound. Molecular formula: C15H11ClO5. Mole weight: 306.70.
It is isolated from the lichen Lecanora straminea. Synonyms: NSC 295146; Chloronorlichexanthone; 4-chloro-1,3,6-trihydroxy-8-methyl-9H-xanthen-9-one; 9H-Xanthen-9-one, 4-chloro-1,3,6-trihydroxy-8-methyl-. CAS No. 65658-58-4. Molecular formula: C14H9ClO5. Mole weight: 292.67.
4-Chlorothreonine
4-Chlorothreonine is produced by the strain of Streptomyces sp. OH-5093. Its herbicidal activity is similar to that of Bialaphos. Synonyms: 4-chloro-L-threonine; L-Threonine, 4-chloro-; rel-(2S,3S)-2-Amino-4-chloro-3-hydroxybutanoic acid. CAS No. 142698-80-4. Molecular formula: C4H8ClNO3. Mole weight: 153.56.
4-Dechlorothiomelin
4-Dechlorothiomelin is a xanthone compound obtained from Lichen Rinodina thiomela. Synonyms: 9H-Xanthen-9-one, 2-chloro-1,8-dihydroxy-5-methoxy-6-methyl-; ACMC-20mix1. CAS No. 113734-84-2. Molecular formula: C15H11ClO5. Mole weight: 306.7.
4''-Dehydrorhodomycin Y
4''-Dehydrorhodomycin Y is an onion ring antibiotic produced by Streptomyces galilaeus MA144-M1t mutant strain KE303. It has anti-tumor and gram-positive bacteria activity. Synonyms: gamma-Rhodomycin RDC; gamma-Rmn-A; 5,12-Naphthacenedione, 7,8,9,10-tetrahydro-8-ethyl-1,6,8,11-tetrahydroxy-7-((2,3,6-trideoxy-4-O-(2,6-dideoxy-4-O-((2R-trans)-tetrahydro-6-methyl-5-oxo-2H-pyran-2-yl)-alpha-L-lyxo-hexopyranosyl)-3-(dimethylamino)-alpha-L-lyxo-hexopyranosyl)oxy)-, (7R-trans)-. CAS No. 76264-96-5. Molecular formula: C40H51NO14. Mole weight: 769.83.
4''-Demethylgentamicin C1
4''-Demethylgentamicin C1 is a gentamicin homolog produced by Micromonospora purpurea var. nigrescens MNG-122. It has anti-gram-positive and negative bacteria activity. Synonyms: Streptamine, O-2-amino-2,3,4,6,7-pentadeoxy-6-(methylamino)-alpha-D-ribo-heptopyranosyl-(1-4)-O-(3-deoxy-3-(methylamino)-beta-L-arabinopyranosyl-(1-6))-2-deoxy-, D-. CAS No. 66322-28-9. Molecular formula: C20H41N5O7. Mole weight: 463.57.
4''-Demethylgentamicin C1a
4''-Demethylgentamicin C1a is a gentamicin homolog produced by Micromonospora purpurea var. nigrescens MNG-122. It has anti-gram-positive and negative bacteria activity. CAS No. 61769-70-8. Molecular formula: C18H37N5O7. Mole weight: 453.52.
4''-Demethylgentamicin C2
4''-Demethylgentamicin C2 is a gentamicin homolog produced by Micromonospora purpurea var. nigrescens MNG-122. It has anti-gram-positive and negative bacteria activity. Synonyms: Streptamine, O-3-deoxy-3-(methylamino)-beta-L-arabinopyranosyl-(1-6)-O-(2,6-diamino-2,3,4,6,7-pentadeoxy-alpha-D-ribo-heptopyranosyl-(1-4))-2-deoxy-, D-. CAS No. 66277-10-9. Molecular formula: C19H39N5O7. Mole weight: 449.54.
4-Deoxybostrycin
4-Deoxybostrycin is a quinone antibiotic produced by Altemaria eichhorniae. It has anti-Bacillus subtilis activity. Synonyms: 9,10-Anthracenedione, 1,2,3,4-tetrahydro-2,3,5,8-tetrahydroxy-7-methoxy-2-methyl-, (2S-cis)-. CAS No. 21879-83-4. Molecular formula: C16H16O7. Mole weight: 320.29.
4'-Deoxybutirosin A
4'-Deoxybutirosin A is an antibiotic produced by Bacillus circulans, B. biotinicus, and B. proteophilus. It has strong inhibition of Escherichia coli and pneumoniae bacteria, and is clinically used for intestinal disinfection before surgery. Synonyms: 4'-Deoxyambutyrosin A; Antibiotic BU 1975C1; BU-1975C1. CAS No. 52760-38-0. Molecular formula: C21H41N5O11. Mole weight: 539.58.
4-Diazo-3-methoxy-2,5-cyclohexadien-1-one
It is produced by the strain of Penicillum funiculosum. It has favourable anti-anaerobe activity. MIC: 0.4μg/mL for Clostridium and Bacterioids, 0.2μg/mL for Haemophilus, <0.05μg/mL for Clostridium and digestive Streptococcus. And it has a weak antibacterial effect on aerobic bacteria. Synonyms: 2,5-Cyclohexadien-1-one,4-diazo-3-methoxy-; 4-diazonio-3-methoxyphenolate; SQ 30957. CAS No. 105114-23-6. Molecular formula: C7H6N2O2. Mole weight: 150.13.
It is the fully demethylated tetraphenol analogue of the benzopyranone graphislactones. It is isolated as a major co-metabolite of a graphislactone A-producing fungus. Synonyms: 3,4,7,9-Tetrahydroxy-1-methyl-6H-dibenzo[b,d]pyran-6-one; 6H-Dibenzo[b,d]pyran-6-one, 3,4,7,9-tetrahydroxy-1-methyl-; Alternariol Impurity 18; 4-hydroxy AOH; 4-OH AOH. Grade: >95% by HPLC. CAS No. 959417-21-1. Molecular formula: C14H10O6. Mole weight: 274.23.
4-Hydroxyalternariol 9-methyl ether
4-Hydroxyalternariol 9-methyl ether is produced from fermentation of Alternaria sp. Samif01. It displays promising antioxidant effect. It shows antibacterial activity against several tested bacterial pathogens with minimum inhibitory concentration values in the range of 86.7-364.7 uM. Synonyms: 3'-Hydroxyalternariol 5-O-methyl ether; 6H-Dibenzo[b,d]pyran-6-one, 3,4,7-trihydroxy-9-methoxy-1-methyl-. Grade: 98.0%. CAS No. 959417-17-5. Molecular formula: C15H12O6. Mole weight: 288.25.
4-Hydroxybaumycinol A1
4-Hydroxybaumycinol A1 is an anthracycline antibiotic produced by Actinomadura sp. D326. It has anti-tumor activity. Synonyms: Rubeomycin B; Baumycinol A1, 4-hydroxy-; Antibiotic FA 1180B. CAS No. 78919-31-0. Molecular formula: C33H43NO13. Mole weight: 661.70.
4-Hydroxybaumycinol A2
4-Hydroxybaumycinol A2 is an anthracycline antibiotic produced by Actinomadura sp. D326. It has anti-tumor activity. Synonyms: Rubeomycin B1. CAS No. 78962-31-9. Molecular formula: C33H43NO13. Mole weight: 661.70.
4'-Hydroxyphlebiarubrone
4-Hydroxyphlebiarubrone is a quinone antibiotic produced by Punctularia atropurpurascens (HA 193-82). It has weak resistance to Gram-negative bacteria and cytotoxicity. CAS No. 93908-33-9. Molecular formula: C19H12O5. Mole weight: 320.30.
4-Hydroxypulvinic dilactone
4-Hydroxypulvinic dilactone.
4-Methylaeruginoic acid
4-Methylaeruginoic acid is an antibiotic produced by Str. sp. KCTC9303. It has an effect on the cytotoxicity of several human tumor cell lines. Synonyms: (4S)-2-(2-hydroxyphenyl)-4-methyl-4,5-dihydro-1,3-thiazole-4-carboxylic acid; (S)-Desazadesferrithiocin. Molecular formula: C11H11NO3S. Mole weight: 237.28.
4-O,3'-O-Didemethyl mutactimycin
4-O,3'-O-Didemethyl mutactimycin is produced by Streptomyces sp. GW 60/1571. Molecular formula: C26H28O11. Mole weight: 516.49.
4-O-Demethyl-11-deoxydaunorubicin is an anthracycline antibiotic produced by Streptomyces peucetius var aureus 416 F. I. It has anti-gram-positive bacteria, negative bacteria and tumor activity. Molecular formula: C26H27NO9. Mole weight: 497.49.
4-O-Demethyl-11-deoxydoxorubicin
4-O-Demethyl-11-deoxydoxorubicin is an onion ring antibiotic produced by Streptomyces peucetius var aureus. It has anti-gram-positive bacteria, negative bacteria and tumor activity. Synonyms: 1-O-Demethyl-6-deoxydoxorubicin. CAS No. 81382-05-0. Molecular formula: C26H27NO10. Mole weight: 513.49.
4-O-Demethylbarbatic acid
4-O-Demethylbarbatic acid is an inhibitor of leukotriene B4 (LTB4). Synonyms: β-Resorcylic acid, 3,6-dimethyl-, 4-(3,6-dimethyl-β-resorcylate) (8CI); 4-Carboxy-3-hydroxy-2,5-dimethylphenyl 2,4-dihydroxy-3,6-dimethylbenzoate; Barbatic acid, 4-O-demethyl-. CAS No. 20372-89-8. Molecular formula: C18H18O7. Mole weight: 346.33.
4'-O-Demethyldianemycin
4'-O-Demethyldianemycin is a polyether antibiotic produced by Streptomyces hygroscopicus TM-531. Activity against gram-positive bacteria. CAS No. 80118-77-0. Molecular formula: C46H75NaO14. Mole weight: 875.06.
4-O-Demethyldiffractaic acid
4-O-Demethyldiffractaic acid is a depside from the Lichen Pseudocyphellaria norvegica. Synonyms: Benzoic acid, 2-hydroxy-4-[(4-hydroxy-2-methoxy-3,6-dimethylbenzoyl)oxy]-3,6-dimethyl-. CAS No. 125304-86-1. Molecular formula: C19H20O7. Mole weight: 360.36.