Description
A major active metabolite of metamizole; inhibits A23187-induced PGE2 production in isolated mouse peritoneal macrophages at 0.1 mM; increases the paw withdrawal threshold in a rat model of carrageenan-induced hyperalgesia at 160 µg/paw; reduces LPS-induced pyrexia in rats at 60, 90, and 120 mg/kg; a potential impurity found in commercial preparations of metamizole
Formal name: 1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one, monohydrochloride
Synonyms: Metamizole Impurity C
Molecular weight: 253.7
CAS: 856307-27-2
Purity: ≥95%
Formulation: A solid