1-Piperidineacetamide, N,N'-(6,12-diphenyldibenzo(b,f)(1,5)diazocine-2,8-diyl)bis- 130189-73-0 2,8-Di(piperidinoacetamido)-6,12-diphenyldibenzo(b,f)(1,5)diazocine BRN 4222903