Crotamiton EP Impurity A CAS 13936-71-5

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.13936-71-5
Molecular FormulaC13H17NO
Molecular Weight203.28 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Crotamiton EP Impurity A CAS 13936-71-5 chemical structure

Description

CATO supplies Crotamiton EP Impurity A (CAS 13936-71-5), a pharmacopoeial impurity reference standard (molecular formula C13H17NO, MW 203.28 g/mol) used for the identification and quantification of trace impurities in APIs.

Crotamiton EP Impurity A (C13H17NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), Crotamiton EP Impurity A meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC13H17NO
Molecular Weight203.28 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1960
Nitrogen Atoms1

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