4-Hydroxy-17α-methyl-19-nortestosterone CAS 2747-16-2

Purity 97%+In StockPharmaceutical Standards
CAS No.2747-16-2
Molecular FormulaC19H28O3
Molecular Weight304.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Hydroxy-17α-methyl-19-nortestosterone CAS 2747-16-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Hydroxy-17α-methyl-19-nortestosterone.

4-Hydroxy-17α-methyl-19-nortestosterone (CAS 2747-16-2) is a high-purity analytical reference standard with the molecular formula C19H28O3 and a molecular weight of 304.42 g/mol.

Owing to a steroid core, a hydroxyl group, an ether linkage, 4-Hydroxy-17α-methyl-19-nortestosterone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 304.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 4-Hydroxy-17α-methyl-19-nortestosterone 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 FormulaC19H28O3
Molecular Weight304.42 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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