(8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one 5-Androsten-17beta-ol-3-one 571-25-5 CAS 571-25-5

Purity 97%+In StockPharmaceutical Standards
CAS No.571-25-5
Molecular FormulaC19H28O2
Molecular Weight288.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one 5-Androsten-17beta-ol-3-one 571-25-5 CAS 571-25-5 chemical structure

Description

CATO supplies (8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one 5-Androsten-17beta-ol-3-one 571-25-5 (CAS 571-25-5), a certified reference material (molecular formula C19H28O2, MW 288.42 g/mol) for analytical method development and quality control.

Structurally, (8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one 5-Androsten-17beta-ol-3-one 571-25-5 (C19H28O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 288.42 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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

As a certified reference material (CRM), (8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one 5-Androsten-17beta-ol-3-one 571-25-5 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC19H28O2
Molecular Weight288.42 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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