1-Guanyl-3,5-dimethylpyrazole hydrochloride 22906-75-8 3,5-Dimethylpyrazole-1-carboxamidine monohydrochloride 40027-64-3 NSC 51109 Pyrazole-1-carboxamidine, 3,5-dimethyl-, monohydrochloride