Pyrantel EP impurity A CAS 36700-38-6

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.36700-38-6
Molecular FormulaC11H14N2S
Molecular Weight206.31 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Pyrantel EP impurity A CAS 36700-38-6 chemical structure

Description

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 supplies Pyrantel EP impurity A (CAS 36700-38-6), a pharmacopoeial impurity reference standard (molecular formula C11H14N2S, MW 206.31 g/mol) used for the identification and quantification of trace impurities in APIs.

Pyrantel EP impurity A (C11H14N2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. 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).

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 FormulaC11H14N2S
Molecular Weight206.31 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1967
Nitrogen Atoms2
Sulfur Atoms1

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