Metamizole EP Impurity C

1,2-Dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one;|1,5-dimethyl-4-(methylamino)-2-phenyl-1H-pyrazol-3(2H)-onehydrochloride;|1,5-dimethyl-4-(methylamino)-2-phenyl-2,3-dihydro-1H-pyrazol-3-one ; 4-Methylamino Antipyrine|1,5-dimethyl-4-(methylamino)-2-phenyl-2,3-dihydro-1H-pyrazol-3-one ;;|4-Methylamino Antipyrine;|4-Methylamino Antipyrine;;|4-Methylaminophenazone;|4-Monomethylaminoantipyrine;|CS-O-05980;|CS-T-82171|Metamizole EP Impurity C;|N-Methyl-4-aminoantipyrine;|Noramidopyrine;|Noraminopyrine;