143-74-8 3H-2,1-Benzoxathiole, 3,3-bis(4-hydroxyphenyl)-, 1,1-dioxide Fenolipuna NSC10459 P. S. P. PSP Phenol red Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, S,S-dioxide Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)di-, S,S-dioxide Phenol, 4,4-(3H-2,1-benzoxathiol-3-ylidene)di-, S,S-dioxide Phenol, 4,4-(3H-2,1-benzoxathiol-3-ylidene)di-, S-S-dioxide Phenolsulfonephthalein Phenolsulfonphthalein Sulfonphthal Sulphental Sulphonthal