Standards; Pharmaceutical/API Drug Impurities/Metabolites;
应用:
2,4-Dicyano-N1,N1,N5,N5-tetraethyl-3-(4-hydroxy-3-methoxy-5-nitrophenyl)pentanediamide is a dimer impurity of Entacapone Vanillin (E558500) and (V097500) respectively. Entacapone acts as a peripherally acting inhibitor of catechol-O-methyl transferase (COMT), an enzyme involved in the metabolism of catecholamine neurotransmitters and related drugs.