2,3-Diaminopyridine 2,3-Pyridinediamine (9CI) 452-58-4 5-22-11-00241 (Beilstein Handbook Reference) AI3-52327 BRN 0109869 DIAMINOPYRIDINE EINECS 207-200-9 NSC 45406 Pyridine, 2,3-diamino- Pyridine-2,3-diyldiamine