Impurity Reference Standard - Products

Metamizole

CAT No: CL-MTM-01 CAS No: 50567-35-6 Mol Wt: 311.4 Mol F: C13H17N3O4S Inv Status: Custom Synthesis

Chemical Name: 1-[(2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)methylamino]methanesulfonic Acid

Metamizole Sodium Monohydrate

CAT No: CL-MTM-02 CAS No: 5907-38-0 Mol Wt: 310.3 : 23.0 : 18.0 Mol F: C13H16N3O4S : Na : H2O Inv Status: Custom Synthesis

Chemical Name: Sodium [(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)(methyl)amino]methanesulfonate monohydrate

Metamizole EP Impurity A

CAT No: CL-MTM-03 CAS No: 1672-58-8 Mol Wt: 231.3 Mol F: C12H13N3O2 Inv Status: Custom Synthesis

Chemical Name: 4-(Formylamino)-1,5-dimethyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-one

Metamizole EP Impurity B

CAT No: CL-MTM-04 CAS No: 83-07-8 Mol Wt: 203.3 Mol F: C11H13N3O Inv Status: In Stock

Chemical Name: 4-Amino-1,5-dimethyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-one ; 4-Aminophenazone

Metamizole EP Impurity C

CAT No: CL-MTM-05 CAS No: 519-98-2 Mol Wt: 217.3 Mol F: C12H15N3O Inv Status: Custom Synthesis

Chemical Name: 1,5-Dimethyl-4-(methylamino)-2-phenyl-2,3-dihydro-1H-pyrazol-3-one

Metamizole EP Impurity D

CAT No: CL-MTM-06 CAS No: 58-15-1 Mol Wt: 231.3 Mol F: C13H17N3O Inv Status: In Stock

Chemical Name: 4-(Dimethylamino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

Metamizole EP Impurity E

CAT No: CL-MTM-07 CAS No: 129-89-5 Mol Wt: 297.3 : 23.0 Mol F: C12H15N3O4S : Na Inv Status: Custom Synthesis

Chemical Name: melamine sulfone sodium salt

Metamizole Impurity 1

CAT No: CL-MTM-08 CAS No: 106236-80-0 Mol Wt: 217.2 Mol F: C11H11N3O2 Inv Status: Custom Synthesis

Chemical Name: N-(5-Methyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)formamide

Metamizole Impurity 3

CAT No: CL-MTM-10 CAS No: NA Mol Wt: 391.4 Mol F: C13H17N3O7S2 Inv Status: Custom Synthesis

Chemical Name: ((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)azanediyl)dimethanesulfonic acid

Metamizole EP Impurity C HCl

CAT No: CL-MTM-11 CAS No: 856307-27-2 Mol Wt: 217.3 : 36.5 Mol F: C12H15N3O : HCl Inv Status: Custom Synthesis

Chemical Name: 4-Methylaminoantipyrine hydrochloride

4-Hydroxy Antipyrine

CAT No: CL-MTM-12 CAS No: 1672-63-5 Mol Wt: 204.2 Mol F: C11H12N2O2 Inv Status: Custom Synthesis

Chemical Name: 4-Hydroxy-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

Metamizole Impurity 6

CAT No: CL-MTM-13 CAS No: 1088850-34-3 Mol Wt: 217.2 Mol F: C11H11N3O2 Inv Status: Custom Synthesis

Chemical Name: 5-Methyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide

4-Acetamido Antipyrine

CAT No: CL-MTM-14 CAS No: 83-15-8 Mol Wt: 245.3 Mol F: C13H15N3O2 Inv Status: Custom Synthesis

Chemical Name: N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)acetamide

Metamizole Impurity 10

CAT No: CL-MTM-16 CAS No: 95046-30-3 Mol Wt: 279.4 Mol F: C12H13N3OS2 Inv Status: Custom Synthesis

Chemical Name: N-(5-(Benzylthio)-3-methyl-1,3,4-thiadiazol-2(3H)-ylidene)acetamide

Metamizole Impurity 11

CAT No: CL-MTM-17 CAS No: 2365289-85-4 Mol Wt: 295.4 Mol F: C12H13N3O2S2 Inv Status: Custom Synthesis

Chemical Name: N-(5-(Benzylsulfinyl)-3-methyl-1,3,4-thiadiazol-2(3H)-ylidene)acetamide

Metamizole Impurity 12

CAT No: CL-MTM-18 CAS No: NA Mol Wt: 274.3 Mol F: C14H18N4O2 Inv Status: Custom Synthesis

Chemical Name: N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-N-((methylamino)methyl)formamide

Metamizole Impurity 13

CAT No: CL-MTM-19 CAS No: NA Mol Wt: 250.3 Mol F: C12H14N2O4 Inv Status: Custom Synthesis

Chemical Name: 4-(Dihydroxymethoxy)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

Metamizole Impurity 14

CAT No: CL-MTM-20 CAS No: 810-16-2 Mol Wt: 446.6 Mol F: C25H30N6O2 Inv Status: Custom Synthesis

Chemical Name: 4,4'-(Methylenebis(methylazanediyl))bis(1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one)

Metamizole Impurity 4

CAT No: CL-MTM-21 CAS No: 62902-13-0 Mol Wt: 247.3 Mol F: C13H17N3O2 Inv Status: Custom Synthesis

Chemical Name: 4-((Hydroxymethyl)(methyl)amino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

Metamizole Impurity 5

CAT No: CL-MTM-22 CAS No: NA Mol Wt: 229.3 Mol F: C13H15N3O Inv Status: Custom Synthesis

Chemical Name: (E)-4-(Ethylideneamino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one

Metamizole Impurity 9

CAT No: CL-MTM-23 CAS No: NA Mol Wt: 391.4 Mol F: C13H17N3O7S2 Inv Status: Custom Synthesis

Chemical Name: (Methyl(5-methyl-3-oxo-2-phenyl-1-(sulfomethyl)-2,3-dihydro-1H-pyrazol-4-yl)amino)methanesulfonic acid

Metamizole Magnesium

CAT No: CL-MTM-24 CAS No: 6150-97-6 Mol Wt: 2(310.3) : 24.3 Mol F: 2(C13H16N3O4S-) : Mg+2 Inv Status: Custom Synthesis

Chemical Name: ((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)(methyl)amino)methanesulfonate magnesium salt

N-Hydroxy Metamizole EP Impurity C

CAT No: CL-MTM-25 CAS No: NA Mol Wt: 233.3 Mol F: C12H15N3O2 Inv Status: Custom Synthesis

Chemical Name: 4-(Hydroxy(methyl)amino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

4-Methylamino-d3 Antipyrine

CAT No: CL-MTM-26 CAS No: 1246820-06-3 Mol Wt: 220.3 Mol F: C12H12D3N3O Inv Status: Custom Synthesis

Chemical Name: 1,5-Dimethyl-4-((methyl-d3)amino)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

Metamizole EP Impurity D-D6

CAT No: CL-MTM-27 CAS No: 91419-95-3 Mol Wt: 237.3 Mol F: C13H11D6N3O Inv Status: Custom Synthesis

Chemical Name: 4-(Bis(methyl-d3)amino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

Type:Impurity Reference Standard

API NAME:Metamizole

Total Products: 25

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