1,1'-Sulfonylbis[4-hydroxybenzene] 2,4'-Sulfonyldiphenol 4,4'-Dihydroxydiphenyl sulfone 4,4'-Sulfonylbisphenol 4,4'-Sulfonyldiphenol 80-09-1 Bis(4-hydroxyphenyl) sulfone Bis(p-hydroxyphenyl) sulfone Bisphenol S NSC8712 Phenol, 4,4'-sulfonylbis- Phenol, 4,4'-sulfonyldi- WLN: QR DSWR DQ