19982-87-7 4-Fluoro-4'-(trifluoromethyl)benzophenone guanylhydrazone hydrochloride Guanidine, [[p-fluoro-.alpha.-(.alpha.,.alpha.,.alpha.-trifluoro-p-tolyl)benzylidene]amino]-, monohydrochloride Hydrazinecarboximidamide, 2-[(4-fluorophenyl)[4-(trifluoromethyl)phenyl]methylene]-, monohydrochloride NSC127923 WR 09792