1,3,5(10)-Estratrien-2,3,4,17beta-tetrol-2,4-dimethyl Ether CAS 65968-99-2

Purity 97%+In StockPharmaceutical Standards
CAS No.65968-99-2
Molecular FormulaC20H28O4
Molecular Weight332.43 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,3,5(10)-Estratrien-2,3,4,17beta-tetrol-2,4-dimethyl Ether CAS 65968-99-2 chemical structure

Description

The occurrence of 1,3,5(10)-Estratrien-2,3,4,17beta-tetrol-2,4-dimethyl Ether is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 1,3,5(10)-Estratrien-2,3,4,17beta-tetrol-2,4-dimethyl Ether (CAS 65968-99-2), a certified reference material (molecular formula C20H28O4, MW 332.43 g/mol) for analytical method development and quality control.

1,3,5(10)-Estratrien-2,3,4,17beta-tetrol-2,4-dimethyl Ether (C20H28O4) 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 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.

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 FormulaC20H28O4
Molecular Weight332.43 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.)1975

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