PHENOLTETRACHLOROPHTHALEIN
UNII NK99B6246I

Substance Identification & Data

This profile provides standardized clinical and technical data for Phenoltetrachlorophthalein, uniquely identified by the FDA Unique Ingredient Identifier (UNII) NK99B6246I.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 639-44-1 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
NK99B6246I
CAS Registry Number
639-44-1
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
PHENOLTETRACHLOROPHTHALEIN
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C20H10Cl4O4
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
NPARLLRHBQQQDY-UHFFFAOYSA-N
Line notation for describing the chemical structure and connectivity of atoms.
PubChem CID
Unique identification number in the NCBI database of chemical substances.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
c1c(ccc(c1)C2(c3c(C(O2)=O)c(c(c(Cl)c3Cl)Cl)Cl)c4ccc(cc4)O)O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Phenoltetrachlorophthalein. 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

3,4,5,6-TETRACHLORO-.ALPHA.-(P-HYDROXYPHENYL)-.ALPHA.-(4-OXO-2,5-CYCLOHEXADIENYLIDENE)-O-TOLUIC ACID
4,5,6,7-TETRACHLOROPHENOLPHTHALEIN
PHENOLPHTHALEIN, 4,5,6,7-TETRACHLORO-
PHENOLTETRACHLOROPHTHALEIN
PHENOLTETRACHLOROPHTHALEIN [MI]

Systematic Nomenclature

4,5,6,7-TETRACHLORO-3,3-BIS(4-HYDROXYPHENYL)-1(3H)-ISOBENZOFURANONE
4,5,6,7-TETRACHLORO-3,3-BIS(4-HYDROXYPHENYL)PHTHALIDE

Technical Codes

NCI-43946