1-(3-Cyano-3,3-diphenylpropyl)-4-phenylisonipecotic acid 28782-42-5 35607-36-4 4-Piperidinecarboxylic acid, 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl- DEA No. 9167 DEA No. 9168 Difenossina [DCIT] Difenoxin Difenoxin (not