PONCEAU 3R FREE ACID
UNII WD0P7VB90K

Substance Identification & Data

This profile provides standardized clinical and technical data for Ponceau 3r Free Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) WD0P7VB90K.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 25738-43-6 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
WD0P7VB90K
CAS Registry Number
25738-43-6
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
PONCEAU 3R FREE ACID
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C19H18N2O7S2
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
OQQYJPVCDFFEIV-QZQOTICOSA-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(\c1c(O)c(S(O)(=O)=O)cc2cc(S(O)(=O)=O)ccc21)=N/c3cc(C)c(C)cc3C

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Ponceau 3r 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. FOOD RED 6 (FREE ACID)
FOOD RED 6 FREE ACID
PONCEAU 3R FREE ACID

Systematic Nomenclature

2,7-NAPHTHALENEDISULFONIC ACID, 3-HYDROXY-4-((2,4,5-TRIMETHYLPHENYL)AZO)-
2,7-NAPHTHALENEDISULFONIC ACID, 3-HYDROXY-4-(2-(2,4,5-TRIMETHYLPHENYL)DIAZENYL)-