1,3,4-Oxadiazole, 2,5-bis(5-amino-2-hydroxyphenyl)- 2,2'-(1,3,4-Oxadiazol-2,5-ylene)bis(4-aminophenol) 95452-62-3 Phenol, 2,2'-(1,3,4-oxadiazol-2,5-ylene)bis(4-amino-