1-((3S,9S,10R,13S,14R,17S)-3-Hydroxy-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethan-1-one CAS 81968-78-7

Purity 97%+In StockPharmaceutical Standards
CAS No.81968-78-7
Molecular FormulaC29H48
Molecular Weight396.69 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-((3S,9S,10R,13S,14R,17S)-3-Hydroxy-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethan-1-one CAS 81968-78-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 396.69 g/mol gives 1-((3S,9S,10R,13S,14R,17S)-3-Hydroxy-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-((3S,9S,10R,13S,14R,17S)-3-Hydroxy-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethan-1-one (CAS 81968-78-7), molecular formula C29H48 and molecular weight 396.69 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C29H48, 1-((3S,9S,10R,13S,14R,17S)-3-Hydroxy-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethan-1-one contains an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 396.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 1-((3S,9S,10R,13S,14R,17S)-3-Hydroxy-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethan-1-one 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 FormulaC29H48
Molecular Weight396.69 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
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1980

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