130189-66-1 4,4'-((6,12-Diphenyldibenzo(b,f)(1,5)diazocine-2,8-diyl)bis(nitrilomethylidyne))bisphenol BRN 4220037 Phenol, 4,4'-((6,12-diphenyldibenzo(b,f)(1,5)diazocine-2,8-diyl)bis(nitrilomethylidyne))bis-