Benzenesulfonic acid,2-[(2,7-dihydro-3-methyl-2,7-dioxo-3H-naphtho[1,2,3-de]quinolin-6-yl)amino]-5-methyl-,sodium salt (1:1)CAS NO.: 4478-76-6
4-Amino-3-(4-((2-amino-4-hydroxyphenyl)azo)phenylazo)-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulfonic acid, disodium saltCAS NO.: 68460-07-1