136-40-3 (HCL) 2,6-Diamino-3-phenylazopyridine, (3E) 2,6-Pyridinediamine, 3-[(E)-phenylazo]- 94-78-0 (FREE BASE) AIDS-084670 AIDS084670 Bisteril Mallophene NSC227115 (HCL) Phenazodine Phenazopyridine Pyridacil Pyridiate Sedural Uridinal Urodine