1-Piperidinebutanenitrile, 4-(((2,5-dioxo-1-pyrrolidinyl)oxy)carbonyl)-alpha,alpha,4-triphenyl- 4-(((2,5-Dioxo-1-pyrrolidinyl)oxy)carbonyl)-alpha,alpha,4-triphenyl-1-piperidinebutanenitrile 47806-92-8 DIFENOXIMIDE