ACID RED 1 FREE ACID
UNII E0X7EHI364

Substance Identification & Data

This profile provides standardized clinical and technical data for Acid Red 1 Free Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) E0X7EHI364.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 25317-20-8 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
E0X7EHI364
CAS Registry Number
25317-20-8
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
ACID RED 1 FREE ACID
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C18H15N3O8S2
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
RSNSKUBBVCGSND-QZQOTICOSA-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
c12c(cc(S(=O)(=O)O)c(c1O)/N=N/c3ccccc3)cc(S(=O)(=O)O)cc2NC(C)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Acid Red 1 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 RED 1 FREE ACID
C.I. ACID RED 1 PARENT
CI ACID RED 1 PARENT

Systematic Nomenclature

2,7-NAPHTHALENEDISULFONIC ACID, 5-(ACETYLAMINO)-4-HYDROXY-3-(2-PHENYLDIAZENYL)-
2,7-NAPHTHALENEDISULFONIC ACID, 5-(ACETYLAMINO)-4-HYDROXY-3-(PHENYLAZO)-