ACID YELLOW 27 FREE ACID
UNII 5GSF9BJV8Y

Substance Identification & Data

This profile provides standardized clinical and technical data for Acid Yellow 27 Free Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 5GSF9BJV8Y.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 25739-68-8 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
5GSF9BJV8Y
CAS Registry Number
25739-68-8
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
ACID YELLOW 27 FREE ACID
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C16H12N4O6S
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
FOLBQMDUXIDRFQ-ISLYRVAYSA-N
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
n1(c(c(c(n1)C(=O)O)/N=N/c2ccccc2)O)-c3ccc(cc3)S(=O)(=O)O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Acid Yellow 27 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

ACID LEATHER YELLOW S FREE ACID
ACID YELLOW 27 FREE ACID
C.I. ACID YELLOW 27 FREE ACID
CI ACID YELLOW 27 FREE ACID

Systematic Nomenclature

1H-PYRAZOLE-3-CARBOXYLIC ACID, 4,5-DIHYDRO-5-OXO-4-(2-PHENYLDIAZENYL)-1-(4-SULFOPHENYL)-
4,5-DIHYDRO-5-OXO-4-(2-PHENYLDIAZENYL)-1-(4-SULFOPHENYL)-1H-PYRAZOLE-3-CARBOXYLIC ACID

Technical Codes

C.I. 19130 FREE ACID
CI 19130 FREE ACID