Tretinoin Impurity 24 CAS CATO-C4X-196924

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-196924
Molecular FormulaC20H28O4
Molecular Weight332.43 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tretinoin Impurity 24 CAS CATO-C4X-196924 chemical structure

Description

Based on its molecular formula C20H28O4, Tretinoin Impurity 24 contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 332.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

CATO supplies Tretinoin Impurity 24 (CAS CATO-C4X-196924), a pharmacopoeial impurity reference standard (molecular formula C20H28O4, MW 332.43 g/mol) used for the identification and quantification of trace impurities in APIs.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

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

Related Tretinoin Standards

Recommended Standards

Why CATO?