4-PREGNEN-6β, 21-DIOL-3, 20-DIONE CAS 298-65-7

Purity 97%+In StockPharmaceutical Standards
CAS No.298-65-7
Molecular FormulaC21H30O4
Molecular Weight346.46 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-PREGNEN-6β, 21-DIOL-3, 20-DIONE CAS 298-65-7 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-PREGNEN-6β, 21-DIOL-3, 20-DIONE.

4-PREGNEN-6β, 21-DIOL-3, 20-DIONE (CAS 298-65-7), molecular formula C21H30O4 and molecular weight 346.46 g/mol, is a CATO reference standard with documented purity and traceability.

4-PREGNEN-6β, 21-DIOL-3, 20-DIONE (C21H30O4) contains a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 4-PREGNEN-6β, 21-DIOL-3, 20-DIONE 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 FormulaC21H30O4
Molecular Weight346.46 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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