. "Bromocresol purple" . "3,3-Bis(3-bromo-4-hydroxy-5-methylphenyl)-2,1\u03BB6-benzoxathiole-1,1(3H)-dione" . . . "bromocresol purple" . . . "bromcresol purple" . . "Bromcresol purple" . "Bromocresol purple" . . . . . . . . . "5\u2032,5\u2032\u2032-Dibromo-o-cresolsulfonephthalein" . .