DIRECT BLUE 81
UNII 3AI8M8YWKB

Substance Identification & Data

This profile provides standardized clinical and technical data for Direct Blue 81, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 3AI8M8YWKB.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 6252-57-9 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
3AI8M8YWKB
CAS Registry Number
6252-57-9
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
DIRECT BLUE 81
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C46H27N7O14S4.4Na
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
KQZDRGKMSIEFDF-MJFZQJADSA-J
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
N(\c1c2c(c(cc1)/N=N/c3c4c(c(cc3)/N=N/c5c6c(cc(c5)S(=O)(=O)[O-])cc(cc6O)S(=O)(=O)[O-])cccc4)ccc(c2)S(=O)(=O)[O-])=N/c7c(c8c(cc7S(=O)(=O)[O-])cc(cc8)Nc9ccccc9)O.[Na+].[Na+].[Na+].[Na+]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Direct Blue 81. 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. 34215
C.I. DIRECT BLUE 81
C.I. DIRECT BLUE 81, TETRASODIUM SALT
CI 34215
DIRECT BLUE 81

Systematic Nomenclature

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

External Clinical & Regulatory Resources

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