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Pharmaceutical Reference Standards

Metamizole Sodium Monohydrate

Picture of Metamizole Sodium Monohydrate
CAT No: SZ-M041001
CAS No: 5907-38-0
Mol.F. : C13H16N3O4S : Na : H2O
Mol.Wt. : 310.3 : 23.0 : 18.0
Inv. Status: In Stock
Rel. CAS No : 50567-35-6 (free base)
SZ-M041001
CAS No:5907-38-0
Mol.F.: C13H16N3O4S : Na : H2O
Mol.Wt.: 310.3 : 23.0 : 18.0
Inv. Status: In Stock
Rel. CAS No : 50567-35-6 (free base)

Metamizole EP Impurity A

Picture of Metamizole EP Impurity A
CAT No: SZ-M041002
CAS No: 1672-58-8
Mol.F. : C12H13N3O2
Mol.Wt. : 231.3
Inv. Status: In Stock
SZ-M041002
CAS No:1672-58-8
Mol.F.: C12H13N3O2
Mol.Wt.: 231.3
Inv. Status: In Stock

Metamizole EP Impurity B

Picture of Metamizole EP Impurity B
CAT No: SZ-M041003
CAS No: 83-07-8
Mol.F. : C11H13N3O
Mol.Wt. : 203.3
Inv. Status: In Stock
SZ-M041003
CAS No:83-07-8
Mol.F.: C11H13N3O
Mol.Wt.: 203.3
Inv. Status: In Stock

Metamizole EP Impurity C

Picture of Metamizole EP Impurity C
CAT No: SZ-M041004
CAS No: 519-98-2
Mol.F. : C12H15N3O
Mol.Wt. : 217.3
Inv. Status: In Stock
SZ-M041004
CAS No:519-98-2
Mol.F.: C12H15N3O
Mol.Wt.: 217.3
Inv. Status: In Stock

Metamizole EP Impurity D

Picture of Metamizole EP Impurity D
CAT No: SZ-M041005
CAS No: 58-15-1
Mol.F. : C13H17N3O
Mol.Wt. : 231.3
Inv. Status: In Stock
SZ-M041005
CAS No:58-15-1
Mol.F.: C13H17N3O
Mol.Wt.: 231.3
Inv. Status: In Stock

Metamizole EP Impurity E

Picture of Metamizole EP Impurity E
CAT No: SZ-M041006
CAS No: 129-89-5
Mol.F. : C12H15N3O4S : Na
Mol.Wt. : 297.3 : 23.0
Inv. Status: In Stock
Rel. CAS No : 117-38-4 (free base)
SZ-M041006
CAS No:129-89-5
Mol.F.: C12H15N3O4S : Na
Mol.Wt.: 297.3 : 23.0
Inv. Status: In Stock
Rel. CAS No : 117-38-4 (free base)

Metamizole Impurity 1

Picture of Metamizole Impurity 1
CAT No: SZ-M041007
CAS No: 106236-80-0
Mol.F. : C11H11N3O2
Mol.Wt. : 217.2
Inv. Status: Custom Synthesis
SZ-M041007
CAS No:106236-80-0
Mol.F.: C11H11N3O2
Mol.Wt.: 217.2
Inv. Status: Custom Synthesis

Metamizole EP Impurity C HCl

Picture of Metamizole EP Impurity C HCl
CAT No: SZ-M041010
CAS No: 856307-27-2
Mol.F. : C12H15N3O : HCl
Mol.Wt. : 217.3 : 36.5
Inv. Status: In Stock
Rel. CAS No : 519-98-2 (free base)
SZ-M041010
CAS No:856307-27-2
Mol.F.: C12H15N3O : HCl
Mol.Wt.: 217.3 : 36.5
Inv. Status: In Stock
Rel. CAS No : 519-98-2 (free base)

Metamizole Antipyrine-4-Peroxide

Picture of Metamizole Antipyrine-4-Peroxide
CAT No: SZ-M041011
CAS No: 69124-27-2
Mol.F. : C11H12N2O3
Mol.Wt. : 220.2
Inv. Status: Custom Synthesis
SZ-M041011
CAS No:69124-27-2
Mol.F.: C11H12N2O3
Mol.Wt.: 220.2
Inv. Status: Custom Synthesis

Metamizole Impurity 4

Picture of Metamizole Impurity 4
CAT No: SZ-M041012
CAS No: 62902-13-0
Mol.F. : C13H17N3O2
Mol.Wt. : 247.3
Inv. Status: Custom Synthesis
SZ-M041012
CAS No:62902-13-0
Mol.F.: C13H17N3O2
Mol.Wt.: 247.3
Inv. Status: Custom Synthesis

Metamizole Impurity 5

Picture of Metamizole Impurity 5
CAT No: SZ-M041013
CAS No: NA
Mol.F. : C13H15N3O
Mol.Wt. : 229.3
Inv. Status: Under Synthesis
SZ-M041013
CAS No:NA
Mol.F.: C13H15N3O
Mol.Wt.: 229.3
Inv. Status: Under Synthesis

Metamizole Impurity 3

Picture of Metamizole Impurity 3
CAT No: SZ-M041014
CAS No: NA
Mol.F. : C13H17N3O7S2
Mol.Wt. : 391.4
Inv. Status: In Stock
SZ-M041014
CAS No:NA
Mol.F.: C13H17N3O7S2
Mol.Wt.: 391.4
Inv. Status: In Stock

Metamizole Impurity 6

Picture of Metamizole Impurity 6
CAT No: SZ-M041015
CAS No: 1088850-34-3
Mol.F. : C11H11N3O2
Mol.Wt. : 217.2
Inv. Status: Custom Synthesis
SZ-M041015
CAS No:1088850-34-3
Mol.F.: C11H11N3O2
Mol.Wt.: 217.2
Inv. Status: Custom Synthesis

Metamizole Impurity 7

Picture of Metamizole Impurity 7
CAT No: SZ-M041016
CAS No: 83-15-8
Mol.F. : C13H15N3O2
Mol.Wt. : 245.3
Inv. Status: Custom Synthesis
SZ-M041016
CAS No:83-15-8
Mol.F.: C13H15N3O2
Mol.Wt.: 245.3
Inv. Status: Custom Synthesis

Metamizole Impurity 8

Picture of Metamizole Impurity 8
CAT No: SZ-M041017
CAS No: 1672-63-5
Mol.F. : C11H12N2O2
Mol.Wt. : 204.2
Inv. Status: In Stock
SZ-M041017
CAS No:1672-63-5
Mol.F.: C11H12N2O2
Mol.Wt.: 204.2
Inv. Status: In Stock

Metamizole Impurity 9

Picture of Metamizole Impurity 9
CAT No: SZ-M041018
CAS No: NA
Mol.F. : C13H17N3O7S2
Mol.Wt. : 391.4
Inv. Status: Custom Synthesis
SZ-M041018
CAS No:NA
Mol.F.: C13H17N3O7S2
Mol.Wt.: 391.4
Inv. Status: Custom Synthesis

Metamizole Impurity 10

Picture of Metamizole Impurity 10
CAT No: SZ-M041021
CAS No: 95046-30-3
Mol.F. : C12H13N3OS2
Mol.Wt. : 279.4
Inv. Status: Custom Synthesis
SZ-M041021
CAS No:95046-30-3
Mol.F.: C12H13N3OS2
Mol.Wt.: 279.4
Inv. Status: Custom Synthesis

Metamizole Impurity 11

Picture of Metamizole Impurity 11
CAT No: SZ-M041022
CAS No: 2365289-85-4
Mol.F. : C12H13N3O2S2
Mol.Wt. : 295.4
Inv. Status: Custom Synthesis
SZ-M041022
CAS No:2365289-85-4
Mol.F.: C12H13N3O2S2
Mol.Wt.: 295.4
Inv. Status: Custom Synthesis

Stable Isotopes and Metabolites

4-Methylamino-d3 Antipyrine

Picture of 4-Methylamino-d3 Antipyrine
CAT No: SZ-M041D01
CAS No: 1246820-06-3
Mol.F. : C12H12D3N3O
Mol.Wt. : 220.3
Inv. Status: Custom Synthesis
SZ-M041D01
CAS No:1246820-06-3
Mol.F.: C12H12D3N3O
Mol.Wt.: 220.3
Inv. Status: Custom Synthesis

4-Dimethylamino Antipyrine-d6

Picture of 4-Dimethylamino Antipyrine-d6
CAT No: SZ-M041D02
CAS No: 91419-95-3
Mol.F. : C13H11D6N3O
Mol.Wt. : 237.3
Inv. Status: Custom Synthesis
SZ-M041D02
CAS No:91419-95-3
Mol.F.: C13H11D6N3O
Mol.Wt.: 237.3
Inv. Status: Custom Synthesis

Possible Nitroso Standards

N-Nitroso Metamizole EP Impurity E

Picture of N-Nitroso Metamizole EP Impurity E
CAT No: SZ-M041019
CAS No: NA
Mol.F. : C12H14N4O5S
Mol.Wt. : 326.3
Inv. Status: Custom Synthesis
SZ-M041019
CAS No:NA
Mol.F.: C12H14N4O5S
Mol.Wt.: 326.3
Inv. Status: Custom Synthesis

N-Nitroso Metamizole Impurity 2

Picture of N-Nitroso Metamizole Impurity 2
CAT No: SZ-M041020
CAS No: NA
Mol.F. : C12H14N4O5S
Mol.Wt. : 326.3
Inv. Status: Custom Synthesis
SZ-M041020
CAS No:NA
Mol.F.: C12H14N4O5S
Mol.Wt.: 326.3
Inv. Status: Custom Synthesis

N-Nitroso Metamizole EP Impurity C

Picture of N-Nitroso Metamizole EP Impurity C
CAT No: SZ-M041023
CAS No: 73829-38-6
Mol.F. : C12H14N4O2
Mol.Wt. : 246.3
Inv. Status: Custom Synthesis
SZ-M041023
CAS No:73829-38-6
Mol.F.: C12H14N4O2
Mol.Wt.: 246.3
Inv. Status: Custom Synthesis