(24S)-24-Ethylcholest-5,22-diene CAS 76879-05-5

Purity 97%+In StockPharmaceutical Standards
CAS No.76879-05-5
Molecular FormulaC29H48
Molecular Weight396.69 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(24S)-24-Ethylcholest-5,22-diene CAS 76879-05-5 chemical structure

Description

Owing to an aromatic ring system, (24S)-24-Ethylcholest-5,22-diene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 396.69 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 (24S)-24-Ethylcholest-5,22-diene (CAS 76879-05-5), a certified reference material (molecular formula C29H48, MW 396.69 g/mol) for analytical method development and quality control.

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 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.)1978

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