3-Oxo-4-azaandrosta-1,5,7-triene-17-carboxylic Acid Methyl Ester CAS 166896-63-5

Purity 97%+In StockPharmaceutical Standards
CAS No.166896-63-5
Molecular FormulaC20H25NO3
Molecular Weight327.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Oxo-4-azaandrosta-1,5,7-triene-17-carboxylic Acid Methyl Ester CAS 166896-63-5 chemical structure

Description

CATO supplies 3-Oxo-4-azaandrosta-1,5,7-triene-17-carboxylic Acid Methyl Ester (CAS 166896-63-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H25NO3. Molecular weight: 327.42 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC20H25NO3
Molecular Weight327.42 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2004
Nitrogen Atoms1

Recommended Standards

Why CATO?