disodium (5or8)-amino-(8or5)-[[4-[(4-nitro-2-sulphonatophenyl)amino]phenyl]azo]naphthalene-2-sulphonate
CAS No. 85136-33-0
Disodium (5or8)-amino-(8or5)-((4-((4-nitro-2-sulphonatophenyl)amino)phenyl)azo)naphthalene-2-sulphonate