1945-77-3 4310-80-9 EINECS 217-743-3 Glycine, N,N'-((1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis((6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene)methylene))bis(N-(carboxymethyl)-, tetrasodium salt Glycine, N,N'-(3H-2,1-benzoxathiol-3-ylidenebis((6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene)methylene))bis(N-(carboxymethyl)-, S,S-dioxide, tetrasodium salt Methylthymol blue NSC 74311 Tetrasodium N,N'-(3H-2,1-benzoxathiol-3-ylidenebis((6-hydroxy-5-isopropyl-2-methylphen-3,1-ylene)methylene))bis(N-(carboxylatomethyl)aminoacetate) S,S-dioxide