DIRECT BLACK 75
UNII B9I2DO4X39

Substance Identification & Data

This profile provides standardized clinical and technical data for Direct Black 75, uniquely identified by the FDA Unique Ingredient Identifier (UNII) B9I2DO4X39.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 2679-49-4 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

B9I2DO4X39

CAS Registry Number

2679-49-4

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

DIRECT BLACK 75

Official standardized name for this substance within the FDA UNII nomenclature system.

InChIKey

C50H27N8O17S5.5Na

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

FLOUWGDMSMWHTL-MAZDEWDRSA-I

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+].N(\c1ccc(/N=N/c2ccc(/N=N/c3cc(S([O-])(=O)=O)c4cccc(S([O-])(=O)=O)c4c3)c5ccccc52)c6ccc(S([O-])(=O)=O)cc61)=N/c7c(O)c8cc(/N=N/c9c(O)ccc%10cc(S([O-])(=O)=O)ccc%109)ccc8cc7S([O-])(=O)=O.[Na+].[Na+].[Na+].[Na+]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Direct Black 75. 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 75

C.I. DIRECT BLACK 75, PENTASODIUM SALT

CI 35870

DIRECT BLACK 75

SUMILIGHT SUPRA GREY R

Brand / Trade Names

DIALUMINOUS GREY R

FASTUSOL GREY LRA-CF

FENALUZ GREY R

SIRIUS LIGHT GREY R

SOLIUS LIGHT GREY R

TETRAMINE FAST GREY R EXTRA

Systematic Nomenclature

1,5-NAPHTHALENEDISULFONIC ACID, 3-(2-(4-(2-(4-(2-(1-HYDROXY-7-(2-(2-HYDROXY-6-SULFO-1-NAPHTHALENYL)DIAZENYL)-3-SULFO-2-NAPHTHALENYL)DIAZENYL)-6-SULFO-1-NAPHTHALENYL)DIAZENYL)-1-NAPHTHALENYL)DIAZENYL)-, SODIUM SALT (1:5)

SYS

Technical Codes

C.I. 35870

External Clinical & Regulatory Resources

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