CAS 144702-26-1: 4'-[[1,4'-Dimethyl-2'-propyl(2,6'-bi-1H-benzimidazol)-1'-yl]-methyl]-1,1'-biphenyl-2-carboxylic acid 1,1-dimethylethyl ester

Heterocyclic compounds with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi

4'-[[1,4'-Dimethyl-2'-propyl(2,6'-bi-1H-benzimidazol)-1'-yl]-methyl]-1,1'-biphenyl-2-carboxylic acid 1,1-dimethylethyl ester (DMBPC) is a drug substance that is used in the manufacture of solid oral dosage forms. It has been shown to be present at low levels as an impurity in other drug substances. The presence of this impurity has been shown to cause problems with the chromatographic and hplc methods used for its quantification. The following are some important aspects of DMBPC: A. Impurities: The purity of DMBPC is 98%. The impurity profile includes 6% 2-propylbenzimidazole (2PB), 3% 4'-[[2-(6' -methoxycarbony

Impurity Telmisartan EP Impurity C Applications Telmisartan tert-Butyl Ester (Telmisartan EP Impurity C) is an impurity of Telmisartan (T017000). Telmisartan impurity C. References Ruth, R., et al.: J. Med. Chem., 39, 625 (1996), Merlos, M., et al.: J. Drugs Future, 22, 1112 (1997), Battershill, A., et al.: J. Drugs, 66, 51 (2006),