1,2-Bis(3,5-dichlorobenzamido)-1,2-di-4-pyridylethane 77502-31-9 Benzamide, N,N'-(1,2-di-4-pyridinyl-1,2-ethanediyl)bis(3,5-dichloro- N,N'-(1,2-Di-4-pyridinyl-1,2-ethanediyl)bis(3,5-dichlorobenzamide)