1,3,5-triazine, 2,4,6-tri-1H-pyrazol-1-yl- 2,4,6-tri-1H-pyrazol-1-yl-1,3,5-triazine InChI=1/C12H9N9/c1-4-13-19(7-1)10-16-11(20-8-2-5-14-20)18-12(17-10)21-9-3-6-15-21/h1-9