Norethisterone Acetate CAS 51-98-9

Purity >95%In StockPharmaceutical Standards
CAS No.51-98-9
Molecular FormulaC22H28O3
Molecular Weight340.46 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Norethisterone Acetate CAS 51-98-9 chemical structure

Description

CATO manufactures Norethisterone Acetate 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.

CATO supplies Norethisterone Acetate (CAS 51-98-9), a certified reference material (molecular formula C22H28O3, MW 340.46 g/mol) for analytical method development and quality control.

The molecular framework of Norethisterone Acetate (C22H28O3) 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.

Physical & Chemical Properties

Molecular FormulaC22H28O3
Molecular Weight340.46 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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