(Sulfobromophthalein)glutathione conjugate 52682-84-5 57818-96-9 Bsp-SG Glutathione-sulfobromophthalein conjugate Glycine, N-(N-L-gamma-glutamyl-L-cysteinyl)-, mixt. with disodium 3,3'-(4,5,6,7-tetrabromo-3-oxo-1(3H)-isobenzofuranylidene)bis(6-hydroxybenzenesulfonate)