Synonyms: N-(3-(Diethylamino)propyl)-4,5-diphenyl-1H-pyrazole-1-acetamide (E)-2-butenedioate (1:1);N-(3-(Diethylamino)propyl)-4,5-diphenylpyrazole-1-acetamide fumarate (1:1);but-2-enedioic acid; N-(3-diethylaminopropyl)-2-(4,5-diphenylpyrazol-1-yl)acetamide;1H-Pyrazole-1-acetamide, N-(3-(diethylamino)propyl)-4,5-diphenyl-, (E)-2-butenedioate (1:1);1H-Pyrazole-1-acetamide,N-[3-(diethylamino) propyl]-4,5-diphenyl-,(2E)-2- butenedioate (1:1);WIN 54177-4;