3',3'',5',5''-Tetrabrom-m-cresolsulfonephthalein 3',3'',5',5''-Tetrabromo-m-cresolsulfonephthalein 76-60-8 BCG Bromcresol Green Bromocresol green NSC7817 Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo-3-methyl-, S,S-dioxide Tetrabromo-m-cresolphthalein sulfone m-Cresol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo-, S,S-dioxide