label: 4,4'-((2,4-dihydroxy-5-(hydroxymethyl)-m-phenylene)bis(azo))di-1-naphthalenesulfonic acid, disodium salt
label_lc: 4,4'-((2,4-dihydroxy-5-(hydroxymethyl)-m-phenylene)bis(azo))di-1-naphthalenesulfonic acid, disodium salt