309762-85-4 3-oxo-4-cholestenoic acid CAS 309762-85-4

Purity 97%+In StockPharmaceutical Standards
CAS No.309762-85-4
Molecular FormulaC27H42O3
Molecular Weight414.62 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

309762-85-4 3-oxo-4-cholestenoic acid CAS 309762-85-4 chemical structure

Description

309762-85-4 3-oxo-4-cholestenoic acid (CAS 309762-85-4) is a high-purity analytical reference standard with the molecular formula C27H42O3 and a molecular weight of 414.62 g/mol.

309762-85-4 3-oxo-4-cholestenoic acid (C27H42O3) 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC27H42O3
Molecular Weight414.62 g/mol
AppearanceOff-white to pale 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025

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