Benzenesulfonic acid,2-amino-3-methyl-5-[[4-[(4-sulfophenyl)amino]phenyl][4-[(4-sulfophenyl)imino]-2,5-cyclohexadien-1-ylidene]methyl]-,sodium salt (1:2) price

Benzenesulfonic acid,2-amino-3-methyl-5-[[4-[(4-sulfophenyl)amino]phenyl][4-[(4-sulfophenyl)imino]-2,5-cyclohexadien-1-ylidene]methyl]-,sodium salt (1:2) price, total count: 1