methyl (4R)-4-[(3R,5S,6R,8S,9S,10S,13R,14S,17R)-3-acetyloxy-6-ethyl-10,13-dimethyl-7-oxo-1,2,3,4,5,6,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate CAS 1953137-50-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1953137-50-2
Molecular FormulaC29H46O5
Molecular Weight474.67 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

methyl (4R)-4-[(3R,5S,6R,8S,9S,10S,13R,14S,17R)-3-acetyloxy-6-ethyl-10,13-dimethyl-7-oxo-1,2,3,4,5,6,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate CAS 1953137-50-2 chemical structure

Description

Owing to a steroid core, a hydroxyl group, an ether linkage, methyl (4R)-4-[(3R,5S,6R,8S,9S,10S,13R,14S,17R)-3-acetyloxy-6-ethyl-10,13-dimethyl-7-oxo-1,2,3,4,5,6,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 474.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 supplies methyl (4R)-4-[(3R,5S,6R,8S,9S,10S,13R,14S,17R)-3-acetyloxy-6-ethyl-10,13-dimethyl-7-oxo-1,2,3,4,5,6,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate (CAS 1953137-50-2), a certified reference material (molecular formula C29H46O5, MW 474.67 g/mol) for analytical method development and quality control.

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.

As a certified reference material (CRM), methyl (4R)-4-[(3R,5S,6R,8S,9S,10S,13R,14S,17R)-3-acetyloxy-6-ethyl-10,13-dimethyl-7-oxo-1,2,3,4,5,6,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate 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 FormulaC29H46O5
Molecular Weight474.67 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 methanol, acetonitrile, DMSO, water (slightly soluble)
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.)1996

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