methyl (3aR,5aR,5bS,7aS,11aS,13aR,13bR,Z)-3-(hydroxyimino)-5a,5b,10,10,13b-pentamethyl-1,2,3,3a,4,5,5a,5b,6,7,8,9,10,11,11a,13,13a,13b-octadecahydro-7aH-cyclopenta[a]chrysene-7a-carboxylate CAS 557766-14-0

Purity 97%+In StockPharmaceutical Standards
CAS No.557766-14-0
Molecular FormulaC28H43NO3
Molecular Weight441.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

methyl (3aR,5aR,5bS,7aS,11aS,13aR,13bR,Z)-3-(hydroxyimino)-5a,5b,10,10,13b-pentamethyl-1,2,3,3a,4,5,5a,5b,6,7,8,9,10,11,11a,13,13a,13b-octadecahydro-7aH-cyclopenta[a]chrysene-7a-carboxylate CAS 557766-14-0 chemical structure

Description

High-purity methyl (3aR,5aR,5bS,7aS,11aS,13aR,13bR,Z)-3-(hydroxyimino)-5a,5b,10,10,13b-pentamethyl-1,2,3,3a,4,5,5a,5b,6,7,8,9,10,11,11a,13,13a,13b-octadecahydro-7aH-cyclopenta[a]chrysene-7a-carboxylate (CAS 557766-14-0) pharmaceutical standards reference standard. Molecular formula: C28H43NO3. Molecular weight: 441.65 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.

Physical & Chemical Properties

Molecular FormulaC28H43NO3
Molecular Weight441.65 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984
Nitrogen Atoms1

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