CAS Registry Number:77907-38-1
2,4-Diaminobenzenesulfonic acid diazo, and 2,5-Bichloro-4-(3-methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling, and 2,4,6-Trichloro-1,3,5-triazine condensation,the product (2 moles) and then with 1,2-Bis(4-amino-2-sulfophenyl)ethene?(1 mol) of condensed
