Description

Homophthalic Acid is a versatile aromatic dicarboxylic acid derivative, serving as a critical building block in advanced organic synthesis. Its unique structure, featuring a carboxylic acid group ortho to a phenylacetic acid moiety, makes it a valuable precursor for constructing complex heterocyclic systems and fine chemicals. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to develop active ingredients and functional materials.

Application

• Pharmaceutical Intermediates: Key starting material for the synthesis of various bioactive molecules, including potential antitumor agents, enzyme inhibitors, and central nervous system (CNS) active compounds.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators, leveraging its ability to form complex ring structures.
• Organic Light-Emitting Diodes (OLEDs): Acts as a precursor for electron-transport materials and host materials in the manufacture of high-performance display and lighting technologies.
• Coordination Chemistry & Catalysis: Serves as a chelating ligand for metal-organic frameworks (MOFs) and homogeneous catalysts due to its dicarboxylate functionality.
• Polymer Modification: Employed as a monomer or cross-linking agent to introduce rigidity and specific functional groups into polyesters and polyamides.
• Dye and Pigment Manufacturing: Intermediate in the synthesis of specialized colorants and fluorescent markers.

Basic Information

Product Name	Homophthalic Acid
CAS No.	89-51-0
Molecular Formula	C9H8O4
Molecular Weight	180.16 g/mol
Synonyms	2-Carboxyphenylacetic Acid; 2-(Carboxymethyl)benzoic Acid; o-Carboxyphenylacetic Acid; Benzeneacetic acid, 2-carboxy-; Homophthalic acid; 1,2-Benzenediacetic acid; 2-Phenylmalonic acid (tautomeric form); α-Carboxy-o-toluic acid
EINECS	201-915-7

Quality Control

Our Homophthalic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR for identification, and loss on drying for moisture content, to ensure it meets the high standards required for synthesis and research. Certificates of Analysis (COA) detailing all test results are provided with every shipment to guarantee traceability and batch-to-batch consistency.

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 sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Melting Point	178 - 182 °C
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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