A broad spectrum antibiotic which is used to inhibit some Gram-positive bacteria, some Gram-negative bacteria, and many atypical bacteria. Azithromycin is an azalide which is a type of macrolide antibiotic. It prevents bacteria from growing by interfering in its protein synthesis. Reference standards of Azithromycin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes. […]

Apixaban Degradation Impurities: These are impurities that form as a result of the chemical degradation of Apixaban under certain conditions such as exposure to heat, light, or other environmental factors. Process Impurities: These impurities arise from the manufacturing process of Apixaban itself. They can include residual solvents, reagents, or by-products from synthesis. Potential Impurities: This […]

Impurities are unwanted substances that may be present in clonidine drugs. Impurities can affect the quality, safety, and efficacy of the medication, and therefore must be carefully controlled and monitored. The presence of impurities can also impact the shelf-life and stability of the drug. It is important to consider the potential risks associated with impurities […]

In recent times, Fexofenadine Impurity synthesis was main objective for KarpsChem team. As we knowFexofenadine, α, α-dimethyl-4-[1-hydroxy-4-[4-(hydroxydiphenyl-methyl)-1-piperidinyl] butyl]-benzene acetic acid  is the active carboxylic acid analogue of the antihistamine terfenadine. It shares the histamine H1 receptor antagonist and non-sedative properties of the parent compound. This could be attributed to its capability to exist in zwitter-ionic […]

Brexpiprazole is an atypical antipsychotic used in the treatment of schizophrenia and major depressive disorders. Brexpiprazole has been associated with a low rate of serum aminotransferase elevations during therapy, but has not been linked to instances of clinically apparent acute liver injury.  Karpschem reference standards serves as basis for evaluation of both process and product performance and serves […]

Teneligliptin hydrobromide hydrate was approved by Pharmaceuticals and Medicals Devices Agency of Japan (PMDA) on June 29, 2012. It was co-developed & co-marketed as Tenelia® by Mitsubishi Tanabe and Daiichi Sankyo. Teneligliptin hydrobromide hydrate is a dipeptidyl peptidase-4 inhibitor. It is indicated for the treatment of type 2 diabetes. Tenelia® is available as tablet for oral use, […]

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 […]