19-Nor-5-androstene-3β,17β-diol (1.0mg/ml in Acetonitrile) CAS 25975-59-1

Purity 97%+In StockPharmaceutical Standards
CAS No.25975-59-1
Molecular FormulaC18H28O2
Molecular Weight276.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

19-Nor-5-androstene-3β,17β-diol (1.0mg/ml in Acetonitrile) CAS 25975-59-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 276.41 g/mol gives 19-Nor-5-androstene-3β,17β-diol (1.0mg/ml in Acetonitrile) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 19-Nor-5-androstene-3β,17β-diol (1.0mg/ml in Acetonitrile) (CAS 25975-59-1), a certified reference material (molecular formula C18H28O2, MW 276.41 g/mol) for analytical method development and quality control.

The molecular framework of 19-Nor-5-androstene-3β,17β-diol (1.0mg/ml in Acetonitrile) (C18H28O2) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

CATO manufactures 19-Nor-5-androstene-3β,17β-diol (1.0mg/ml in Acetonitrile) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC18H28O2
Molecular Weight276.41 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
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.)1964

Related Nor Standards

Recommended Standards

Why CATO?