Synonyms:
2-(1,3-diphenyl-2-imidazolidinylidene)-1,3-diphenylimidazolidine ; 1,1',3,3'-tetraphenyl-2,2'-biimidazolidinylidene ; Δ2,2'-bi[1,3-diphenylimidazolidine] ; nsc 137944 ; d2,2'-biimidazolidine,1,1',3,3'-tetraphenyl- (7ci,8ci) ; 1,1',3,3'-tetraphenyl-Δ2,2'-biimidazolidine ; 2-(1,3-diphenyl-2-imidazolidinylidene)-1,3-diphenyl-imidazolidin ; imidazolidine,2-(1,3-diphenyl-2-imidazolidinylidene)-1,3-diphenyl- ; 2,2'-bis(1,3-diphenylimidazolidinylidene),98+% ; bis(1,3-diphenyl-2-imidazolidinylidene) ; -bis(1,3-diphenylimidazolidinylidene),98+% ; 2-[1,3-di(phenyl)imidazolidin-2-ylidene]-1,3-di(phenyl)imidazolidine