4-Amino-5-chloro-2-methoxy-N-4-piperidinylbenzamide (E)-2-butenedioate 57645-49-5 63639-43-0 Benzamide, 4-amino-5-chloro-2-methoxy-N-4-piperidinyl-, (E)-2-butenedioate N-(4'-Piperidyl)-2-methoxy-4-amino-5-chlorobenzamide fumarate