METAMIZOLE SODIUM
UNII VSU62Z74ON

Substance Identification & Data

This profile provides standardized clinical and technical data for Metamizole Sodium, uniquely identified by the FDA Unique Ingredient Identifier (UNII) VSU62Z74ON.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 68-89-3 and the RxNorm Concept ID (RxCUI) 1537943. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

VSU62Z74ON

CAS Registry Number

68-89-3

RxNorm Concept ID

1537943

Detailed Substance Profile

Preferred Name

METAMIZOLE SODIUM

Official standardized name for this substance within the FDA UNII nomenclature system.

Molecular Formula

VSU62Z74ON

The specific atomic composition represented as a molecular structure string.

InChIKey

C13H16N3O4S.Na

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

DJGAAPFSPWAYTJ-UHFFFAOYSA-M

Line notation for describing the chemical structure and connectivity of atoms.

NCI Thesaurus

C170166

National Cancer Institute reference terminology for clinical and research data.

PubChem CID

522325

Unique identification number in the NCBI database of chemical substances.

INN ID

477

Sequential identifier assigned via the WHO International Nonproprietary Name program.

Substance Type

chemical

ISO 11238 classification category (e.g., Chemical, Polymer, Protein).

Ingredient Role

[Na+].Cc1c(c(n(n1C)-c2ccccc2)=O)N(C)CS([O-])(=O)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Metamizole Sodium. Identifiers are organized into official regulatory terms, commercial trade names, and technical systematic synonyms used to ensure accurate identification across clinical pharmaceutical databases, regulatory filings, and electronic health records.