Skip to Content
Merck
CN

SML1488

Metamizole sodium hydrate

≥98% (HPLC)

Synonym(s):

(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

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C13H16N3O4S · Na · H2O
CAS Number:
5907-38-0
Molecular Weight:
351.35
UNSPSC Code:
12352200
NACRES:
NA.77

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Metamizole sodium hydrate, ≥98% (HPLC)

SMILES string

[Na+].[S](=O)(=O)([O-])CN(C)c1[c]([n]([n](c1C)C)c2ccccc2)=O.O

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

assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

H2O: 25 mg/mL, clear

storage temp.

2-8°C

Quality Level

100

Looking for similar products? Visit Product Comparison Guide

Related Categories

Biochem/physiol Actions

Metamizole (Dipyrone) is a potent analgesic and antipyretic.
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 Metamizole has been withdrawn from clinical use in several countries because of a side-effect of agranulocytosis in some patients.

General description

Metamizole sodium is a nonsteroidal anti-inflammatory drug (NSAID). It is widely used as an analgesic and antipyretic agent.

pictograms

Health hazard
GHS08

signalword

Warning

hcodes

H361fd

Hazard Classifications

Repr. 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

涉药品监管产品
This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000520811
0000520811
0000435794
0000435796
0000435796

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Acute kidney injury associated with metamizole sodium ingestion.
Hassan K, et al.
Renal Failure, 33(5), 544-547 (2011)
Diéssica Padilha Dalenogare et al.
Pharmaceuticals (Basel, Switzerland), 14(8) (2021-08-29)
Headaches are frequently described in progressive multiple sclerosis (PMS) patients, but their mechanism remains unknown. Transient receptor potential ankyrin 1 (TRPA1) was involved in neuropathic nociception in a model of PMS induced by experimental autoimmune encephalomyelitis (PMS-EAE), and TRPA1 activation

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service