DIRECT BLACK 4
UNII 63X35PF58V

Substance Identification & Data

This profile provides standardized clinical and technical data for Direct Black 4, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 63X35PF58V.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 2429-83-6 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
63X35PF58V
CAS Registry Number
2429-83-6
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
DIRECT BLACK 4
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C35H27N9O7S2.2Na
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
LWPZXDCHPRMLBN-GLEUTNGMSA-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
c12c(cc(S(=O)(=O)[O-])c(c1N)/N=N/c3ccc(-c4ccc(/N=N/c5c(cc(N)c(c5)C)N)cc4)cc3)cc(S(=O)(=O)[O-])c(c2O)/N=N/c6ccccc6.[Na+].[Na+]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Direct Black 4. 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

C.I. DIRECT BLACK 4
CI 30245
CI DIRECT BLACK 4 [HSDB]
CI DIRECT BLACK 4, DISODIUM SALT
DIRECT BLACK 4
DISODIUM 4-AMINO-3-((4'-((2,4-DIAMINO-5- METHYLPHENYL)AZO)(1,1'-BIPHENYL)-4-YL)AZO)-5-HYDROXY-6- (PHENYLAZO)NAPHTHALENE-2,7-DISULPHONATE

Brand / Trade Names

COTTON BLACK MT
PAPER DEEP BLACK R

Systematic Nomenclature

2,7-NAPHTHALENEDISULFONIC ACID, 4-AMINO-3-((4'-((2,4-DIAMINO-5-METHYLPHENYL)AZO)(1,1'-BIPHENYL)-4-YL)AZO)-5-HYDROXY-6-(PHENYLAZO)-, DISODIUM SALT
2,7-NAPHTHALENEDISULFONIC ACID, 4-AMINO-3-(2-(4'-(2-(2,4-DIAMINO-5-METHYLPHENYL)DIAZENYL)(1,1'-BIPHENYL)-4-YL)DIAZENYL)-5-HYDROXY-6-(2-PHENYLDIAZENYL)-, SODIUM SALT (1:2)

Technical Codes

NSC-73417

External Clinical & Regulatory Resources

CAS
Common Chemistry
NCATS
Inxight Drugs
NLM
DailyMed Products
NCATS
GSRS Full Record