FD&C RED NO. 4 FREE ACID
UNII WJE3T5596E

Substance Identification & Data

This profile provides standardized clinical and technical data for Fd&c Red No. 4 Free Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) WJE3T5596E.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 14918-59-3 and the RxNorm Concept ID (RxCUI) 1999761. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

WJE3T5596E

CAS Registry Number

14918-59-3

RxNorm Concept ID

1999761

Detailed Substance Profile

Preferred Name

FD&C RED NO. 4 FREE ACID

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

Molecular Formula

WJE3T5596E

The specific atomic composition represented as a molecular structure string.

InChIKey

C18H16N2O7S2

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

DZCOAQKTFAIFRV-FMQUCBEESA-N

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

PubChem CID

6328587

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

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

Ingredient Role

S(=O)(=O)(O)c1c2c(c(c(c1)/N=N/c3c(cc(c(c3)S(=O)(=O)O)C)C)O)cccc2

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Fd&c Red No. 4 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.