Estriol impurity 22 CAS 69227-81-2

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.69227-81-2
Molecular FormulaC21H30O3
Molecular Weight330.46 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Estriol impurity 22 CAS 69227-81-2 chemical structure

Description

Estriol impurity 22 (CAS 69227-81-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H30O3. Molecular weight: 330.46 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC21H30O3
Molecular Weight330.46 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.)1976

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