105-20-4 138-92-1 1H-Pyrazole-3-ethanamine, dihydrochloride 2-(3-Pyrazolyl)ethylamine dihydrochloride 3,5-beta-Pyrazoleethylamine dihydrochloride 3-(2-Aminoethyl)pyrazole dihydrochloride 3-beta-Aminoethylpyrazole dihydrochloride Ametazole dihydrochloride Betazole dihydrochloride Betazole hydrochloride EINECS 205-345-2 Gastramine Histalog Histimin Pyrazole, 3-(2-aminoethyl)-, dihydrochloride