disodium 5-[(2-hydroxy-5-methylphenyl)azo]-2-[2-(4-nitro-2-sulphonatophenyl)vinyl]benzenesulphonate
disodium 5-[(2-hydroxy-5-methylphenyl)azo]-2-[2-(4-nitro-2-sulphonatophenyl)vinyl]benzenesulphonate
CAS: 73281-07-9
Molecular Formula: C21H15N3Na2O9S2