Methylxylenol lue

METHYLXYLENOL BLUE

3-[3-[[Bis(carboxymethyl)amino]methyl]-4-hydroxy-2,5-dimethylphenyl]-3-[3-[[carboxymethyl(sodiooxycarbonylmethyl)amino]methyl]-4-hydroxy-2,5-dimethylphenyl]-3H-2,1-benzoxathiole 1,1-dioxide