ETC04: Entacapone EP Impurity D

ETC04: Entacapone EP Impurity D

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Entacapone EP Impurity D ;

(2E)-2-Cyano-3-(3-ethoxy-4-hydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide ;

CAS # 857629-79-9 ;

C16H19N3O5 ;

MW: 333.34 ;