4-METHYLPHTHALIC ACID
UNII RDR8D8Q6WG

Substance Identification & Data

This profile provides standardized clinical and technical data for 4-methylphthalic Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) RDR8D8Q6WG.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 4316-23-8 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

RDR8D8Q6WG

CAS Registry Number

4316-23-8

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

4-METHYLPHTHALIC ACID

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

InChIKey

C9H8O4

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

CWJJAFQCTXFSTA-UHFFFAOYSA-N

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

PubChem CID

20310

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

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

Ingredient Role

c1(c(cc(C)cc1)C(O)=O)C(O)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for 4-methylphthalic Acid. 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.