Isotope labelled (2E)-2-Cyano-3-(3-ethoxy-4-hydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide (C956047), an impurity of Entacapone (E558500), a peripherally acting inhibitor of catechol-O-methyl transferase (COMT), an enzyme involved in the metabolism of catecholamine neurotransmitters and related drugs. Antiparkinsonian.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.