Dipyrone68-89-3100 % similar Dipyrone monohydrate5907-38-094 % similar Aminopyrine58-15-157 % similar Diantipyrylmethane1251-85-047 % similar Ampyrone83-07-845 % similar 4-Iodoantipyrine129-81-744 % similar 4-Aminoantipyrine hydrochloride22198-72-743 % similar Propyphenazone479-92-543 % similar 4-Formylantipyrine950-81-243 % similar Ramifenazone3615-24-541 % similar Isopyrine hydrochloride18342-39-739 % similar Antipyrine60-80-032 % similar