1,3,5-Triazine-2,4-diamine, 6-(4-pyridinyl)- 33237-20-6 6-(4-Pyridyl)-1,3,5-triazine-2,4-diamine AI3-60203 EINECS 251-415-0 NSC 240853 s-Triazine, 2,4-diamino-6-(4-pyridyl)- (8CI)