D&C RED NO. 6
UNII 481744AI4O

Substance Identification & Data

This profile provides standardized clinical and technical data for D&c Red No. 6, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 481744AI4O.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 5858-81-1 and the RxNorm Concept ID (RxCUI) 1311178. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
481744AI4O
CAS Registry Number
5858-81-1
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
D&C RED NO. 6
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
481744AI4O
The specific atomic composition represented as a molecular structure string.
InChIKey
C18H12N2O6S.2Na
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
VPWFPZBFBFHIIL-LLIZZRELSA-L
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
c1cc(c(S([O-])(=O)=O)cc1C)/N=N/c2c(c(cc3c2cccc3)C([O-])=O)O.[Na+].[Na+]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for D&c Red No. 6. 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

AKA201
CI 15850
PIGMENT RED 57
RED 6

Common Names & Synonyms

2-NAPHTHALENECARBOXYLIC ACID, 3-HYDROXY-4-((E)-(4-METHYL-2-SULFOPHENYL)AZO)-, DISODIUM SALT
C.I. 15850
D&C RED NO. 6
D&C RED NO. 6 [II]
DC RED NO. 6
DISODIUM SALT OF 3-HYDROXY-4-((4-METHYL-2-SULFOPHENYL)AZO)-2-NAPHTHALENECARBOXYLIC ACID
DYE DC RED NO. 6
FD&C RED NO. 6 (DELISTED)
LITHOL RUBIN B
PIGMENT RED 57, DISODIUM SALT

Systematic Nomenclature

2-NAPHTHALENECARBOXYLIC ACID, 3-HYDROXY-4-(2-(4-METHYL-2-SULFOPHENYL)DIAZENYL)-, SODIUM SALT (1:2)
DISODIUM 3-HYDROXY-4-((E)-(4-METHYL-2-SULFONATOPHENYL)DIAZENYL)-2-NAPHTHOATE

NDC Products Containing D&C RED NO. 6

This unique ingredient identifier is listed as an ingredient or substance in the following products in the NDC directory: