CAS Number: 56120-28-6
Chemical Name: 4,4'-Diazoaminodibenzenesulfonic Acid Disodium Salt
Molecular Formula: C12H11N3Na2O6S2
Molecular Weight: 403.33

CAS Number: 98-71-5
Chemical Name: 4-Hydrazinobenzenesulfonic acid
Molecular Formula: C6H8N2O3S
Molecular Weight: 188.2

CAS Number: 1934-21-0
Chemical Name: Tartrazine
Molecular Formula: C16H9N4Na3O9S2
Molecular Weight: 534.36