PIGMENT RED 166
UNII 2X2HR8CGT2

Substance Identification & Data

This profile provides standardized clinical and technical data for Pigment Red 166, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 2X2HR8CGT2.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 3905-19-9 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

2X2HR8CGT2

CAS Registry Number

3905-19-9

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

PIGMENT RED 166

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

InChIKey

C40H24Cl4N6O4

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

NQDGNYQKISTHLK-RYZURTRPSA-N

Line notation for describing the chemical structure and connectivity of atoms.

PubChem CID

77508

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

ISO 11238 classification category (e.g., Chemical, Polymer, Protein).

Ingredient Role

N(=N/c1c(Cl)ccc(c1)Cl)\c2c3c(cc(c2O)C(Nc4ccc(cc4)NC(=O)c5c(O)c(/N=N/c6c(Cl)ccc(c6)Cl)c7c(c5)cccc7)=O)cccc3

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Pigment Red 166. 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.