1,4-BDPOB 1,4-Bis(2-(3,5-dichloropyridyloxy))benzene 2,2'-(1,4-Phenylenebis(oxy))bis(3,5-dichloropyridine) 76150-91-9 99916-31-1 CCRIS 3521 Pyridine, 2,2'-(1,4-phenylenebis(oxy))bis(3,5-dichloro- TCPOBOP