1-Amidino-3-methyl-4-((2-ethoxyphenyl)azo)-5-hydroxy-1,2,4-triazolehydrochloride 1H-1,2,4-Triazole-1-carboximidamide, 4-((2-ethoxyphenyl)azo)-4,5-dihydro-3-methyl-5-oxo-, monohydrochloride 73612-27-8