1,2-Bis(4-methoxybenzamido)-1,2-di-4-pyridylethane 77502-34-2 Benzamide, N,N'-(1,2-di-4-pyridinyl-1,2-ethanediyl)bis(4-methoxy- N,N'-(1,2-Di-4-pyridinyl-1,2-ethanediyl)bis(4-methoxybenzamide)