D&C RED NO. 7
UNII ECW0LZ41X8

Substance Identification & Data

This profile provides standardized clinical and technical data for D&c Red No. 7, uniquely identified by the FDA Unique Ingredient Identifier (UNII) ECW0LZ41X8.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 5281-04-9 and the RxNorm Concept ID (RxCUI) 1310564. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
ECW0LZ41X8
CAS Registry Number
5281-04-9
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
D&C RED NO. 7
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
ECW0LZ41X8
The specific atomic composition represented as a molecular structure string.
InChIKey
C18H12N2O6S.Ca
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
PZTQVMXMKVTIRC-RZLHGTIFSA-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
[Ca+2].c1(/N=N/c2ccc(cc2S([O-])(=O)=O)C)c3ccccc3cc(C([O-])=O)c1O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for D&c Red No. 7. 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

AKA202
PIGMENT RED 57:1
RED 7

Common Names & Synonyms

2-NAPHTHALENECARBOXYLIC ACID, 3-HYDROXY-4-((E)-(4-METHYL-2-SULFOPHENYL)AZO)-, CALCIUM SALT (1:1)
2-NAPHTHALENECARBOXYLIC ACID, 3-HYDROXY-4-(2-(4-METHYL-2-SULFOPHENYL)DIAZENYL)-, CALCIUM SALT (1:1)
BRILLIANT CARMINE 6B
C.I. 15850:1
CALCIUM SALT OF 3-HYDROXY-4-((4-METHYL-2-SULFOPHENYL)AZO)-2- NAPHTHALENECARBOXYLIC ACID
CI 15850:1
D&C RED 7 CALCIUM LAKE
D&C RED NO. 7
D&C RED NO. 7 [II]
D&C RED NO. 7--CALCIUM LAKE
D&C RED NO. 7--CALCIUM LAKE [II]
DC RED NO. 7
DC RED NO. 7-CALCIUM LAKE
DYE DC RED NO. 7 CALCIUM LAKE
LITHOL RUBINE BK
LITHOL RUBINE BK [USP-RS]
LITHOLRUBINE
PIGMENT RUBINE [MART.]

Systematic Nomenclature

CALCIUM 3-HYDROXY-4-((E)-(4-METHYL-2-SULFONATOPHENYL)DIAZENYL)-2-NAPHTHOATE

NDC Products Containing D&C RED NO. 7

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