(20R,24R)-24-Ethyldiacholest-13(17)-ene CAS 99265-25-5

Purity 97%+In StockPharmaceutical Standards
CAS No.99265-25-5
Molecular FormulaC29H50
Molecular Weight398.71 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(20R,24R)-24-Ethyldiacholest-13(17)-ene CAS 99265-25-5 chemical structure

Description

CATO supplies (20R,24R)-24-Ethyldiacholest-13(17)-ene (CAS 99265-25-5), a certified reference material (molecular formula C29H50, MW 398.71 g/mol) for analytical method development and quality control.

Structurally, (20R,24R)-24-Ethyldiacholest-13(17)-ene (C29H50) contains an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 398.71 g/mol, it falls into the moderately-high-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), (20R,24R)-24-Ethyldiacholest-13(17)-ene 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 FormulaC29H50
Molecular Weight398.71 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985

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