Variety of impurities like Genotoxic, Neurotoxic impurities required for agencies like USFDA, MHRDA etc,are available. KarpsChem specialized in manufacturing and supply of pharmacopoeia impurities, process impurities, isolation and identification of unknown impurities. KarpsChem is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Guaifenesin, pharmacopeial and non-pharmacopeial Guaifenesin impurities, metabolites, stable […]