Amylmetacresol EP Impurity C CAS CATO-C4X-20253

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-20253
Molecular FormulaC12H18O
Molecular Weight178.27 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Amylmetacresol EP Impurity C CAS CATO-C4X-20253 chemical structure

Description

CATO supplies Amylmetacresol EP Impurity C (CAS CATO-C4X-20253), a pharmacopoeial impurity reference standard (molecular formula C12H18O, MW 178.27 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Amylmetacresol EP Impurity C (C12H18O) contains a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 178.27 g/mol, it falls into the medium-molecular-weight range. 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 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 FormulaC12H18O
Molecular Weight178.27 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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