1866-05-3 3-BUTEN-2-ONE, 4,4-DIPHENYL-1-PIPERIDINO- 3-Buten-2-one, 4,4-diphenyl-1-(1-piperidinyl)- 4,4-Diphenyl-1-piperidino-3-buten-2-one 5-20-02-00378 (Beilstein Handbook Reference) BRN 1581008