Black 7984 technical grade

2118-39-0

Sodium 6-amino-4-hydroxy-3-((E)-(7-sulfonato-4-((E)-(4-sulfonatophenyl)diazenyl)naphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate; 6-Amino-4-hydroxy-3-[2-[7-sulfo-4-[2-(4-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]-2,7-naphthalenedisulfonic Acid Sodium Salt;