1H-pyrazole-4-carbonitrile, 5-amino-1-methyl- 5-amino-1-methyl-1H-pyrazole-4-carbonitrile 5334-41-8 InChI=1/C5H6N4/c1-9-5(7)4(2-6)3-8-9/h3H,7H2,1H