17-Hydroxypregn-​4-​en-​3-​one CAS 1235-97-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1235-97-8
Molecular FormulaC21H32O2
Molecular Weight316.48 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

17-Hydroxypregn-​4-​en-​3-​one CAS 1235-97-8 chemical structure

Description

CATO manufactures 17-Hydroxypregn-​4-​en-​3-​one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

17-Hydroxypregn-​4-​en-​3-​one (CAS 1235-97-8), molecular formula C21H32O2 and molecular weight 316.48 g/mol, is a CATO reference standard with documented purity and traceability.

17-Hydroxypregn-​4-​en-​3-​one (C21H32O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC21H32O2
Molecular Weight316.48 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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