Metamizole used in some countries to treat pain. Metamizole is marketed under various trade names. Reference standards of Metamizole API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
4-Acetylaminophenazone
Catalogue No.:PA 13 24510
CAS :
Molecular Formula : C13H15N3O2
Molecular Weight : 245.28
Metamizole Magnesium
Catalogue No.:PA 13 24520
Molecular Formula : C26H32MgN6O8S2
Molecular Weight : 645
4-Hydroxyantipyrine
Catalogue No.:PA 13 24530
Molecular Formula : C11H12N2O2
Molecular Weight : 204.23
(Methyl(5-methyl-3-oxo-2-phenyl-1-(sulfomethyl)-2,3-dihydro-1H-pyrazol-4-yl)amino)methanesulfonic Acid
Catalogue No.:PA 13 24550
Molecular Formula : C13H17N3O7S2
Molecular Weight : 391.42
N-(5-Methyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)formamide
Catalogue No.:PA 13 24560
Molecular Formula : C11H11N3O2
Molecular Weight : 217.22
Dipyrone-d3
Catalogue No.:PA STI 035800
Molecular Formula : C13H13D3N3NaO4S
Molecular Weight : 336.36
((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)amino)methanesulfonic Acid
Catalogue No.:PAI 13 001050
Molecular Formula : C12H15N3O4S
Molecular Weight : 297.33
Metamizole sodium (M0600900)
Catalogue No.:PA EPM0600900
Molecular Formula : NA
Molecular Weight : NA
Metamizole impurity A (M0600905)
Catalogue No.:PA EPM0600905
Metamizole impurity E (Y0001481)
Catalogue No.:PA EPY0001481
Sodium (methyl(5-methyl-3-oxo-2-phenyl-1-(sulfonatomethyl)-2,3-dihydro-1H-pyrazol-4-yl)amino)methanesulfonate
Catalogue No.:PA 13 0241000
Molecular Formula : C13H15N3Na2O7S2
Molecular Weight : 435.38
(E)-4-(Ethylideneamino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one
Catalogue No.:PA 13 0241001
Molecular Formula : C13H15N3O
Molecular Weight : 229.28
2-(N-[Acetyl(methyl)amino]anilino)-N-methyl-2-oxoacetamide
Catalogue No.:PA 13 0241002
Molecular Formula : C12H15N3O3
Molecular Weight : 249.27
Sodium ((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)azanediyl)dimethanesulfonate
Catalogue No.:PA 13 1910001
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