4-(4'-Acetyl-phenyl-azo)-3-methyl-pyrazolon-(5)-yl-1-amidin-amidinoguanidon 2HCl [German] F 2331 Pyrazole-1-carboxamidine, 4-((p-acetylphenyl)azo)-5-oxo-, 4-(amidinohydrazone), dihydrochloride UQ6377000