(8'S,9'S,10'R,13'S,14'S)-13'-ethyl-11'-methylidenespiro[1,3-dioxolane-2,3'-2,4,7,8,9,10,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one CAS 149438-01-7

Purity 97%+In StockPharmaceutical Standards
CAS No.149438-01-7
Molecular FormulaC22H30O3
Molecular Weight342.47 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(8'S,9'S,10'R,13'S,14'S)-13'-ethyl-11'-methylidenespiro[1,3-dioxolane-2,3'-2,4,7,8,9,10,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one CAS 149438-01-7 chemical structure

Description

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

(8'S,9'S,10'R,13'S,14'S)-13'-ethyl-11'-methylidenespiro[1,3-dioxolane-2,3'-2,4,7,8,9,10,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one (CAS 149438-01-7) is a high-purity analytical reference standard with the molecular formula C22H30O3 and a molecular weight of 342.47 g/mol.

(8'S,9'S,10'R,13'S,14'S)-13'-ethyl-11'-methylidenespiro[1,3-dioxolane-2,3'-2,4,7,8,9,10,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one (C22H30O3) 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).

CATO manufactures (8'S,9'S,10'R,13'S,14'S)-13'-ethyl-11'-methylidenespiro[1,3-dioxolane-2,3'-2,4,7,8,9,10,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-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.

Physical & Chemical Properties

Molecular FormulaC22H30O3
Molecular Weight342.47 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1999

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