METACHROME YELLOW
UNII Y1YL31LOKF

Substance Identification & Data

This profile provides standardized clinical and technical data for Metachrome Yellow, uniquely identified by the FDA Unique Ingredient Identifier (UNII) Y1YL31LOKF.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 584-42-9 and the RxNorm Concept ID (RxCUI) N/A. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

Y1YL31LOKF

CAS Registry Number

584-42-9

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

METACHROME YELLOW

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

InChIKey

C13H8N3O5.Na

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

ZHFPEICFUVWJIS-WPDLWGESSA-M

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

Substance Type

chemical

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

Ingredient Role

c1(cc(c(O)cc1)C(=O)[O-])/N=N/c2cc(ccc2)[N+](=O)[O-].[Na+]

Synonyms and Nomenclature

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