ACID ORANGE 8 FREE ACID
UNII I1OO79801K

Substance Identification & Data

This profile provides standardized clinical and technical data for Acid Orange 8 Free Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) I1OO79801K.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 18524-46-4 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
I1OO79801K
CAS Registry Number
18524-46-4
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
ACID ORANGE 8 FREE ACID
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C17H14N2O4S
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
FEACTMUAXQJDBH-VHEBQXMUSA-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
c12ccccc1ccc(c2/N=N/c3ccc(cc3C)S(=O)(=O)O)O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Acid Orange 8 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-(2'-METHYL-4'-SULFOPHENYLAZO)-2-NAPHTHOL
ACID ORANGE 8 FREE ACID
C.I. ACID ORANGE 8, PARENT
M-TOLUENESULFONIC ACID, 4-((2-HYDROXY-1-NAPHTHYL)AZO)-

Systematic Nomenclature

4-(2-HYDROXY-1-NAPHTHYLAZO)-M-TOLUENESULFONIC ACID
BENZENESULFONIC ACID, 4-((2-HYDROXY-1-NAPHTHALENYL)AZO)-3-METHYL-
BENZENESULFONIC ACID, 4-(2-(2-HYDROXY-1-NAPHTHALENYL)DIAZENYL)-3-METHYL-