Description

4-Carboxyphenylacetic Acid is a versatile aromatic carboxylic acid derivative that serves as a key building block in advanced organic synthesis. Its bifunctional structure, featuring both a phenylacetic acid and a benzoic acid moiety, makes it a valuable intermediate for creating complex molecules with tailored properties. This compound is essential for research and production in the pharmaceutical and fine chemical industries, where high-purity intermediates are critical for product efficacy and regulatory compliance.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutic agents.
• Liquid Crystal Material Synthesis: Used in the production of advanced organic materials for display technologies.
• Agrochemical Development: Serves as a building block for creating novel herbicides, fungicides, and plant growth regulators.
• Peptide Synthesis & Modification: Employed to introduce specific carboxylic acid functionalities into peptide chains for biochemical research.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for producing specialty polymers with enhanced properties.
• Organic Synthesis & Research: A fundamental reagent for constructing complex organic frameworks in academic and industrial R&D laboratories.

Basic Information

Product Name	4-Carboxyphenylacetic Acid
CAS No.	501-89-3
Molecular Formula	C9H8O4
Molecular Weight	180.16 g/mol
Synonyms	(4-Carboxyphenyl)acetic Acid; 4-Carboxybenzeneacetic Acid; Homoterephthalic Acid; 2-(4-Carboxyphenyl)acetic Acid; p-Carboxyphenylacetic Acid; 4-Carboxyphenyl Acetic Acid; 4-Carboxybenzylacetic Acid; 4-Carboxybenzene Acetic Acid
EINECS	207-931-7

Quality Control

Our 4-Carboxyphenylacetic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, IR, and titration methods, to ensure it meets the high-purity standards required for pharmaceutical and fine chemical applications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.