1,3,5-Triazine s-Triazine 290-87-9 InChI=1/C3H3N3/c1-4-2-6-3-5-1/h1-3 ZINC01718513 NSC56189 Vedita 250 sym-Triazine AIDS-081849 AIDS081849 Cyanidine T46051_ALDRICH CHEBI:30259 EINECS 206-028-1 NSC 56189