TETRABROMOPHENOL BLUE DISODIUM SALT

TETRABROMOPHENOLTETRABROMOSULFOPHTHALEIN DISODIUM SALT

Disodium 4,4'-[(4,5,6,7-tetrabromo-3H-2,1-benzoxathiole 1,1-dioxide)-3-ylidene]bis(2,6-dibromophenolate)