DIRECT YELLOW 34 FREE ACID
UNII R1C1444NUY

Substance Identification & Data

This profile provides standardized clinical and technical data for Direct Yellow 34 Free Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) R1C1444NUY.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 15999-06-1 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

R1C1444NUY

CAS Registry Number

15999-06-1

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

DIRECT YELLOW 34 FREE ACID

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

InChIKey

C37H32N6O15S4

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

PYZZWCXOEADQTK-IZRQRQPJSA-N

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

PubChem CID

160837

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

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

Ingredient Role

C(=O)(Nc1cc(c(cc1OC)\N=N\c2cc(c3cccc(c3c2)S(=O)(=O)O)S(=O)(=O)O)C)Nc4cc(c(cc4OC)\N=N\c5cc(c6cccc(c6c5)S(=O)(=O)O)S(=O)(=O)O)C

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Direct Yellow 34 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

1,5-NAPHTHALENEDISULFONIC ACID, 3,3'-(CARBONYLBIS(IMINO(5-METHOXY-2-METHYL-4,1-PHENYLENE)AZO))BIS-

DIRECT YELLOW 34 FREE ACID

External Clinical & Regulatory Resources

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