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ChemicalBook--->CAS DataBase List--->98474-21-6

98474-21-6

98474-21-6 Structure

98474-21-6 Structure
IdentificationBack Directory
[Name]

kerriamycin B
[CAS]

98474-21-6
[Synonyms]

urdamycin A
kerriamycin B
[Molecular Formula]

C43H56O17
[MOL File]

98474-21-6.mol
[Molecular Weight]

844.9
Chemical PropertiesBack Directory
[Boiling point ]

1019.2±65.0 °C(Predicted)
[density ]

1.49±0.1 g/cm3(Predicted)
[storage temp. ]

Store at -20°C
[solubility ]

Dichloromethane: soluble,DMSO: soluble,Ethanol: soluble,Methanol: soluble
[form ]

A solid
[pka]

5.97±0.70(Predicted)
Hazard InformationBack Directory
[Description]

Urdamycin A is a bacterial metabolite originally isolated from S. fradiae that has antibacterial and anticancer activities. It is active against a variety of Gram-positive and Gram-negative bacteria, including B. subtilis and strains of Arthrobacter and Streptomyces, but not the fungus S. cerevisiae, in a disc assay when used at a concentration of 1 mg/ml. Urdamycin A is cytotoxic to L1210 and HT-29, but not A549, cancer cells (IC50s = 7.5, 5, and >10 μg/ml, respectively).
[Uses]

Urdamycin A (Compound 3b) is an angucycline antibiotic that can be isolated from Streptomyces fradiae. Urdamycin A is an orange indicator with a change of the color to ultramarine blue at pH 7.7. Urdamycin A has anticancer activity with IC50s of 2.4 and 0.55 μg/mL in proliferation and stem cell assays, respectively[1].
[storage]

Store at -20°C
[References]

[1] Drautz H, et al. Metabolic products of microorganisms. 234. Urdamycins, new angucycline antibiotics from Streptomyces fradiae. I. Isolation, characterization and biological properties. J Antibiot (Tokyo). 1986 Dec;39(12):1657-69. DOI:10.7164/antibiotics.39.1657
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