2,4'-Dihydroxydiphenyl sulfone 2,4'-Sulfonyldiphenol 2-((4-Hydroxyphenyl)sulfonyl)phenol 4,2'-Dihydroxydiphenyl sulfone 5397-34-2 AI3-08668 EINECS 226-421-1 NSC 2432 O,P-Dihydroxydiphenyl sulfone Phenol, 2,4'-sulfonyldi- Phenol, 2,4'-sulfonyldi- (6CI,7CI,8CI) Phenol, 2-((4-hydroxyphenyl)sulfonyl)- o-((4-Hydroxyphenyl)sulphonyl)phenol