DIRECT BROWN 2
UNII 35C7Y2E3X5

Substance Identification & Data

This profile provides standardized clinical and technical data for Direct Brown 2, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 35C7Y2E3X5.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 2429-82-5 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
35C7Y2E3X5
CAS Registry Number
2429-82-5
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
DIRECT BROWN 2
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C29H19N5O7S.2Na
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
CXAVOCVLMJULES-KZIIJSKASA-L
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
[Na+].c12c(c(c(/N=N/c3ccc(-c4ccc(/N=N/c5cc(c(O)cc5)C(=O)[O-])cc4)cc3)c(c1)S(=O)(=O)[O-])O)cc(N)cc2.[Na+]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Direct Brown 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.

Common Names & Synonyms

5-((4'-((7-AMINO-1-HYDROXY-3-SULFO-2-NAPHTHYL) AZO)-4- BIPHENYL)AZO)-SALICYLIC ACID
C.I. DIRECT BROWN 2
C.I. DIRECT BROWN 2, DISODIUM SALT
CI 22311
CI DIRECT BROWN 2
DIRECT BROWN 2
DIRECT BROWN 2 [HSDB]
DISODIUM 5-((4'-((7-AMINO-1-HYDROXY-3-SULPHONATO-2- NAPHTHYL)AZO)(1,1'-BIPHENYL)-4-YL)AZO)SALICYLATE

Brand / Trade Names

AZOCARD BROWN M
UNION BROWN DR

Systematic Nomenclature

BENZOIC ACID, 5-((4'-((7-AMINO-1-HYDROXY-3-SULFO-2-NAPHTHALENYL)AZO)(1,1'-BIPHENYL)-4-YL)AZO)-2-HYDROXY-, DISODIUM SALT
BENZOIC ACID, 5-(2-(4'-(2-(7-AMINO-1-HYDROXY-3-SULFO-2-NAPHTHALENYL)DIAZENYL)(1,1'-BIPHENYL)-4-YL)DIAZENYL)-2-HYDROXY-, SODIUM SALT (1:2)

Technical Codes

NSC-74701