METACHROME YELLOW FREE ACID
UNII WM785CYD3S

Substance Identification & Data

This profile provides standardized clinical and technical data for Metachrome Yellow Free Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) WM785CYD3S.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 6283-26-7 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
WM785CYD3S
CAS Registry Number
6283-26-7
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
METACHROME YELLOW FREE ACID
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C13H9N3O5
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
LJOXBIGRIKPBSQ-CCEZHUSRSA-N
Line notation for describing the chemical structure and connectivity of atoms.
PubChem CID
Unique identification number in the NCBI database of chemical substances.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
[N+](c1cc(/N=N/c2cc(C(=O)O)c(cc2)O)ccc1)([O-])=O

Synonyms and Nomenclature

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

Common Names & Synonyms

C.I. MORDANT YELLOW 1 FREE ACID
METACHROME YELLOW FREE ACID

Systematic Nomenclature

2-HYDROXY-5-((1E)-2-(3-NITROPHENYL)DIAZENYL)BENZOIC ACID
2-HYDROXY-5-((3-(HYDROXY(OXIDO)AMINO)PHENYL)DIAZENYL)BENZOIC ACID
3-NITROBENZENE-1-AZO-5-SALICYLIC ACID
BENZOIC ACID, 2-HYDROXY-5-((1E)-2-(3-NITROPHENYL)DIAZENYL)-
BENZOIC ACID, 2-HYDROXY-5-(2-(3-NITROPHENYL)DIAZENYL)-

Technical Codes

NSC-7797