Cholesterol impurity 41 CAS 1255-88-5

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1255-88-5
Molecular FormulaC29H50O2
Molecular Weight430.71 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cholesterol impurity 41 CAS 1255-88-5 chemical structure

Description

Owing to a steroid core, a hydroxyl group, an ether linkage, Cholesterol impurity 41 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 430.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

CATO supplies Cholesterol impurity 41 (CAS 1255-88-5), a pharmacopoeial impurity reference standard (molecular formula C29H50O2, MW 430.71 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.

CATO manufactures Cholesterol impurity 41 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 FormulaC29H50O2
Molecular Weight430.71 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

Related Cholesterol Standards

Recommended Standards

Why CATO?