SOLVENT ORANGE 2
UNII E939MCU4ID

Substance Identification & Data

This profile provides standardized clinical and technical data for Solvent Orange 2, uniquely identified by the FDA Unique Ingredient Identifier (UNII) E939MCU4ID.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 2646-17-5 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
E939MCU4ID
CAS Registry Number
2646-17-5
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
SOLVENT ORANGE 2
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C17H14N2O
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
BQFCCCIRTOLPEF-VHEBQXMUSA-N
Line notation for describing the chemical structure and connectivity of atoms.
NCI Thesaurus
National Cancer Institute reference terminology for clinical and research data.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
c12c(/N=N/c3c(cccc3)C)c(ccc1cccc2)O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Solvent Orange 2. 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.

FDA Official Name

DAIDAI403

Common Names & Synonyms

2-NAPHTHOL, 1-(O-TOLYLAZO)-
A.F. ORANGE NO. 2
C.I. 12100
C.I. SOLVENT ORANGE 2
C.I. SOLVENT ORANGE 2 [HSDB]
CI 12100
D&C ORANGE NO. 2 (DELISTED)
FAT ORANGE II
FAT ORANGE RR
FD&C ORANGE NO. 2 (DELISTED)
LACQUER ORANGE V
OIL ORANGE SS
OIL ORANGE SS [IARC]
OIL ORANGE SS [II]
OIL ORANGE TX
ORANGE OT
ORANGE TX
SOLVENT ORANGE 2

Systematic Nomenclature

1-((2-METHYLPHENYL)AZO)-2-NAPHTHALENOL
2-NAPHTHALENOL, 1-((2-METHYLPHENYL)AZO)-
2-NAPHTHALENOL, 1-(2-(2-METHYLPHENYL)DIAZENYL)-

Technical Codes

NSC-58044