Aminopyrine58-15-1100 % similar Ampyrone83-07-862 % similar Diantipyrylmethane1251-85-060 % similar 4-Iodoantipyrine129-81-760 % similar 4-Aminoantipyrine hydrochloride22198-72-757 % similar Propyphenazone479-92-557 % similar 4-Formylantipyrine950-81-257 % similar Dipyrone68-89-357 % similar Dipyrone monohydrate5907-38-054 % similar Ramifenazone3615-24-553 % similar Isopyrine hydrochloride18342-39-750 % similar Antipyrine60-80-042 % similar 2,5-Dimethyl-1-phenyl-1H-pyrrole-3-carboxaldehyde83-18-131 % similar 3-Methyl-1-phenylpyrazolone19735-89-830 % similar