Pyrantel EP Impurity A (Pamoic salt) is chemically 1-Methyl-2-[(Z)-2-(thiophen-2-yl)eth-1-en-1-yl]-1,4,5,6-tetrahydropyrimidine 4,4'-methylenebis(3-hydroxy-2-naphthoate) (as per EP) ; ((Z)-1-Methyl-2-[2-(2-thiophenyl)vinyl]-1,4,5,6-Tetrahydropyrimidine 4,4’-methylenebis[3-hydroxy-2-naphthoate] (1:1)) (as per USP). It is also known as Pyrantel USP Related Compound A. Pyrantel EP Impurity A (Pamoic salt) is supplied with detailed characterization data compliant with regulatory guideline. Pyrantel EP Impurity A (Pamoic salt) can be used for the analytical method development, method validation (AMV), Quality Controlled (QC) application for Abbreviated New Drug Application (ANDA) or during commercial production of Pyrantel.

The product can be used as reference standards and further traceability against pharmacopeial standards (USP or EP) can be provided based on feasibility. SynZeal products are for analytical purpose only and not for human use.