An Analytical Reference Standard
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15771Metamizole (sodium salt)
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Metamizole (sodium salt)

Item No. 32996

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Synonyms
Synonyms
  • Dipyrone
Technical Information
Formal Name
1-[(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)methylamino]-methanesulfonic acid, monosodium salt
CAS Number
68-89-3
Molecular Formula
C13H16N3O4S • Na
Formula Weight
333.3
Purity
≥98%
Formulation
A solid
Solubility(Learn about Variance in Solubility)
DMSO: Soluble: ≥10 mg/mlEthanol: Soluble: ≥10 mg/mlPBS (pH 7.2): Soluble: ≥10 mg/ml
SMILES
CN(CS([O-])(=O)=O)C1=C(C)N(C)N(C2=CC=CC=C2)C1=O.[Na+]
InChi Code
InChI=1S/C13H17N3O4S.Na/c1-10-12(14(2)9-21(18,19)20)13(17)16(15(10)3)11-7-5-4-6-8-11;/h4-8H,9H2,1-3H3,(H,18,19,20);/q;+1/p-1
InChi Key
DJGAAPFSPWAYTJ-UHFFFAOYSA-M
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Metamizole (sodium salt) (Item No. 32996) is an analytical reference standard categorized as an analgesic and anti-inflammatory agent.1 It has been found as an adulterant in samples seized by law enforcement.1,2 This product is intended for research and forensic applications. This product is also available as a general research tool (Item No. 15771).

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Isaacs, R.C.A., Harper, M.M., and Miller, E.C. Analytical challenges in the confirmative identification of dipyrone as an adulterant in illicit drug samples. Forensic Sci. Int. 270, 185-192 (2017).

    2. Fucci, N., and De Giovanni, N. Adulterants encountered in the illicit cocaine market. Forensic Sci. Int. 95(3), 247-252 (1998).