1H-Pyrazole-1-carboxamidine hydrochloride4023-02-3100 % similar [1,2,4]Triazole-1-carboxamidine hydrochloride19503-26-552 % similar 2-Amidinopyrimidine hydrochloride138588-40-633 % similar 3-Guanylpyridine hydrochloride7356-60-733 % similar Pyrazine-2-carboximidamide monohydrochloride138588-41-732 % similar