PHR1800

Metamizole Sodium

Pharmaceutical Secondary Standard; Certified Reference Material

• Synonym(s): Metamizole sodium hydrate, (antipyrinylmethylamino)methanesulfonic acid sodium salt, 1-Phenyl-2,3-dimethyl-5-pyrazolone-4-methylaminomethanesulfonate sodium, 4-Methylamino-1,5-dimethyl-2-phenyl-3-pyrazolone sodium methanesulfonate, Analgin, Dipyrone, Metamizol, Methampyrone, Methylmelubrin, Noraminopyrine methanesulfonate sodium, Sodium methylaminoantipyrine methanesulfonate, Sulpyrine, [(2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)methylamino]methanesulfonic acid sodium salt
• Empirical Formula (Hill Notation): C₁₃H₁₆N₃O₄S · Na · H₂O
• CAS Number: 5907-38-0
• Molecular Weight: 351.35
• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• grade: certified reference material; pharmaceutical secondary standard
• Quality Level: 300
• Agency: traceable to Ph. Eur. M0600900
• API family: metamizole
• form: solid
• CofA: current certificate can be downloaded
• packaging: pkg of 100 mg
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• application(s): pharmaceutical (small molecule)
• storage temp.: 2-8°C
• InChI: 1S/C13H17N3O4S.Na.H2O/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);;1H2/q;+1;/p-1
• InChI key: UNZIDPIPYUMVPA-UHFFFAOYSA-M

Description

General description

Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards

Application

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Biochem/physiol Actions

Metamizole (Dipyrone) is a potent analgesic and antipyretic. Metamizole inhibits prostaglandin synthesis in both the periphery and the central nervous system. Metamizole may act as a prodrug. It is rapidly hydrolyzed to N-methyl-4-aminoantipyrine (MAA) and 4-aminoantipyrine (AA) which inhibit cyclo-oxygenase activity and can be further acylated with arachidonic acid forming compounds that bind to central and peripheral cannabinoid (CB1 and CB2) receptors and TRPV1 receptors. It is believed that these metabolites play a major role in metamizole activity. Metamizole has been withdrawn from clinical use in several countries because of a side-effect of agranulocytosis in some patients.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAC2806 in the Documents slot below. This is an example certificate only and may not be the lot that you receive.

Recommended products

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Safety Information

• Pictograms: GHS08
• Signal Word: Warning
• Hazard Statements: H361fd
• Precautionary Statements: P201 - P202 - P280 - P308 + P313 - P405 - P501
• Hazard Classifications: Repr. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable