4-Iodoantipyrine129-81-7100 % similar Ampyrone83-07-865 % similar Diantipyrylmethane1251-85-063 % similar 4-Aminoantipyrine hydrochloride22198-72-760 % similar Propyphenazone479-92-560 % similar Aminopyrine58-15-160 % similar 4-Formylantipyrine950-81-260 % similar Ramifenazone3615-24-556 % similar Isopyrine hydrochloride18342-39-752 % similar Dipyrone68-89-344 % similar Antipyrine60-80-044 % similar Dipyrone monohydrate5907-38-042 % similar 2,5-Dimethyl-1-phenyl-1H-pyrrole-3-carboxaldehyde83-18-133 % similar 3-Methyl-1-phenylpyrazolone19735-89-832 % similar