5-PREGNEN-3β, 16α, 20α-TRIOL CAS 3885-13-0

Purity 97%+In StockPharmaceutical Standards
CAS No.3885-13-0
Molecular FormulaC21H34O3
Molecular Weight334.49 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-PREGNEN-3β, 16α, 20α-TRIOL CAS 3885-13-0 chemical structure

Description

The occurrence of 5-PREGNEN-3β, 16α, 20α-TRIOL is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 5-PREGNEN-3β, 16α, 20α-TRIOL (CAS 3885-13-0), a certified reference material (molecular formula C21H34O3, MW 334.49 g/mol) for analytical method development and quality control.

Owing to a steroid core, a hydroxyl group, an ether linkage, 5-PREGNEN-3β, 16α, 20α-TRIOL is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 334.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

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 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.)1958

Related PREGNEN Standards

Recommended Standards

Why CATO?