METRIZAMIDE
UNII RHH3W8F1CO

Substance Identification & Data

This profile provides standardized clinical and technical data for Metrizamide, uniquely identified by the FDA Unique Ingredient Identifier (UNII) RHH3W8F1CO.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 31112-62-6 and the RxNorm Concept ID (RxCUI) 6920. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

RHH3W8F1CO

CAS Registry Number

31112-62-6

RxNorm Concept ID

6920

Detailed Substance Profile

Preferred Name

METRIZAMIDE

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

InChIKey

C18H22I3N3O8

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

DTZMSDADRKLCQE-RFMXWLSYSA-N

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

NCI Thesaurus

C66139

National Cancer Institute reference terminology for clinical and research data.

PubChem CID

20056604

Unique identification number in the NCBI database of chemical substances.

INN ID

3116

Sequential identifier assigned via the WHO International Nonproprietary Name program.

Substance Type

chemical

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

Ingredient Role

O=C[C@@H]([C@H]([C@@H]([C@@H](CO)O)O)O)NC(c1c(c(c(c(c1I)NC(C)=O)I)N(C(=O)C)C)I)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Metrizamide. 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.