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Description

Metamizole Sodium · CAS 68-89-3 · C13H16N3NaO4S. UNII VSU62Z74ON.

Identification

CAS Registry Number	68-89-3
PubChem CID	522325
Molecular formula	C13H16N3NaO4S
IUPAC name	sodium [(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-methylamino]methanesulfonate
UNII (FDA)	VSU62Z74ON

Computed Descriptors

Molecular Weight	333.34
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	4
Exact Mass	333.07592146
Monoisotopic Mass	333.07592146
Topological Polar Surface Area	92.4
Heavy Atom Count	22
Formal Charge	0
Complexity	552

Regulatory Status

GHS notification summary	4.2% (4 / 96)

GHS Hazard Classification

GHS notification summary	4.2% (4 / 96)
Reported hazard statements	H302 (11.5%), H317 (50%), H334 (50%), H361 (30.2%), H372 (29.2%), H411 (29.2%)

Documented Uses

• Animal Drugs -> FDA Approved Animal Drug Products (Green Book) -> Active Ingredients
• Breast Feeding; Lactation; Milk, Human; Analgesic Agents; Anti-inflammatory Agents, Nonsteroidal
• Dipyrone (Class: Analgesics, Added Date: 10-1998)
• Anti-inflammatory agents that are non-steroidal in nature. In addition to anti-inflammatory actions, they have analgesic, antipyretic, and platelet-inhibitory actions. They act by blocking the synthesis of prostaglandins by inhibiting cyclooxygenase, which converts arachidonic acid to cyclic endoperoxides, precursors of prostaglandins. Inhibition of prostaglandin synthesis accounts for their analgesic, antipyretic, and platelet-inhibitory actions; other mechanisms may contribute to their anti-inflammatory effects.
• Drugs that are used to reduce body temperature in fever.
• N02B - Other analgesics and antipyretics

Synonyms

68-89-3; Metamizole sodium; Methylmelubrin; Neomelurbrin; Algocalmin; Aminopyrine sodium sulfonate; Metamizolum natricum; Dipyrone anhydrous; Metamizole sodique; Noraminophenazone sodium mesylate; Noramidopyrine methanesulfonate sodium; Sodium noramidopyrine methanesulfonate; Sodium methylaminoantipyrine methanesulfonate; Noraminophenazone methanesulfonate sodium salt; Vetalgin; Sodium (antipyrinylmethylamino)methanesulfonate

Frequently Asked Questions

What are the CAS number and molecular formula of Metamizole Sodium?

CAS 68-89-3; molecular formula C13H16N3NaO4S; molecular weight — g/mol.

What other names is Metamizole Sodium known by?

68-89-3, Metamizole sodium, Methylmelubrin, Neomelurbrin, Algocalmin, Aminopyrine sodium sulfonate.

Is Metamizole Sodium classified as hazardous?

4.2% of GHS notifications report no hazard classification (4 of 96).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.