(3β,20R)-Pregn-5-ene-3,17,20-triol CAS 2204-13-9

Purity 97%+In StockPharmaceutical Standards
CAS No.2204-13-9
Molecular FormulaC21H34O3
Molecular Weight334.49 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3β,20R)-Pregn-5-ene-3,17,20-triol CAS 2204-13-9 chemical structure

Description

As a certified reference material (CRM), (3β,20R)-Pregn-5-ene-3,17,20-triol 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.

(3β,20R)-Pregn-5-ene-3,17,20-triol (CAS 2204-13-9) is a high-purity analytical reference standard with the molecular formula C21H34O3 and a molecular weight of 334.49 g/mol.

(3β,20R)-Pregn-5-ene-3,17,20-triol (C21H34O3) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

Physical & Chemical Properties

Molecular FormulaC21H34O3
Molecular Weight334.49 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

Related R Standards

Recommended Standards

Why CATO?