1,1'-(1H-1,2,4-triazole-3,5-diyl)diethanone InChI=1/C6H7N3O2/c1-3(10)5-7-6(4(2)11)9-8-5/h1-2H3,(H,7,8,9 ethanone, 1,1'-(1H-1,2,4-triazole-3,5-diyl)bis-