17.alpha.-Pregn-5-en-20-yne-3.beta.,17.beta.-diol 3604-60-2 Androst-5-ene-3.beta., 17-ethynyl- NSC-17098 NSC17098 Pregn-5-en-20-yne-3, (3.beta.,17.alpha.)- CAS 3604-60-2

Purity 97%+In StockPharmaceutical Standards
CAS No.3604-60-2
Molecular FormulaC21H30O2
Molecular Weight314.46 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

17.alpha.-Pregn-5-en-20-yne-3.beta.,17.beta.-diol 3604-60-2 Androst-5-ene-3.beta., 17-ethynyl- NSC-17098 NSC17098 Pregn-5-en-20-yne-3, (3.beta.,17.alpha.)- CAS 3604-60-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 314.46 g/mol gives 17.alpha.-Pregn-5-en-20-yne-3.beta.,17.beta.-diol 3604-60-2 Androst-5-ene-3.beta., 17-ethynyl- NSC-17098 NSC17098 Pregn-5-en-20-yne-3, (3.beta.,17.alpha.)- distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 17.alpha.-Pregn-5-en-20-yne-3.beta.,17.beta.-diol 3604-60-2 Androst-5-ene-3.beta., 17-ethynyl- NSC-17098 NSC17098 Pregn-5-en-20-yne-3, (3.beta.,17.alpha.)- (CAS 3604-60-2), a certified reference material (molecular formula C21H30O2, MW 314.46 g/mol) for analytical method development and quality control.

The molecular framework of 17.alpha.-Pregn-5-en-20-yne-3.beta.,17.beta.-diol 3604-60-2 Androst-5-ene-3.beta., 17-ethynyl- NSC-17098 NSC17098 Pregn-5-en-20-yne-3, (3.beta.,17.alpha.)- (C21H30O2) 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.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC21H30O2
Molecular Weight314.46 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

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