Description
Validamycin A, a fungicidal, is an agricultural antibiotic. Validamycin A is originally isolated from Streptomyces hygroscopicus var. limoneus. Validamycin A inhibits the growth of A. flavus, with a MIC of 1 μg/mL. Validamycin A shows potent inhibitory activity against trehalase of Rhizoctonia solani, with an IC50 of 72 μM. Validamycin A is a reversible tyrosinase inhibitor, with a Ki of 5.893 mM.
Product information
CAS Number: 37248-47-8
Molecular Weight: 497.49
Formula: C20H35NO13
Chemical Name: (2R,3R,4S,5S,6R)-2-{[(1R,2R,3S,4S,6R)-2,3-dihydroxy-6-(hydroxymethyl)-4-{[(1S,4R,5S,6S)-4,5,6-trihydroxy-3-(hydroxymethyl)cyclohex-2-en-1-yl]amino}cyclohexyl]oxy}-6-(hydroxymethyl)oxane-3,4,5-triol
Smiles: O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](C[C@H](N[C@H]3C=C(CO)[C@@H](O)[C@H](O)[C@H]3O)[C@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O
InChiKey: JARYYMUOCXVXNK-CSLFJTBJSA-N
InChi: InChI=1S/C20H35NO13/c22-3-6-1-8(12(26)15(29)11(6)25)21-9-2-7(4-23)19(17(31)13(9)27)34-20-18(32)16(30)14(28)10(5-24)33-20/h1,7-32H,2-5H2/t7-,8+,9+,10-,11-,12+,13+,14-,15+,16+,17-,18-,19-,20+/m1/s1
Technical Data
Appearance: Solid Power
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: H2O : 125 mg/mL (251.26 mM; Need ultrasonic).
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined
HS Tariff Code: 382200
How to use
In Vitro:
Validamycin A (0.5-1 μg/mL; 18 hours) inhibits the growth of A. flavus and delayed conidial germination. Validamycin A shows no cytotoxicity to human bronchial epithelial cells. Validamycin A directly binds to several residues in the active site of tyrosinase, including HIS85, HIS244, GLU256, HIS259 and ASN260.
Products are for research use only. Not for human use.
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