Description

4,5-Dihydroxyphthalic Acid is a multifunctional aromatic dicarboxylic acid derivative, serving as a critical building block in advanced organic synthesis. Its unique structure, featuring both phenolic hydroxyl and carboxylic acid groups, makes it a versatile precursor for creating complex molecules with tailored properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries, where it is used to develop active ingredients, ligands, and high-performance materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring chelating or metal-binding functionalities.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Ligand and Chelating Agent: Serves as a building block for creating complexing agents and catalysts used in industrial processes and analytical chemistry.
• Polymer and Resin Modifier: Incorporated into specialty polyesters, epoxy resins, and coatings to enhance thermal stability, adhesion, and chemical resistance.
• Dye and Pigment Intermediate: Utilized in the production of high-value, complex organic dyes and pigments.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic pathways and material science applications.

Basic Information

Product Name	4,5-Dihydroxyphthalic Acid
CAS No.	63958-66-7
Molecular Formula	C8H6O6
Molecular Weight	198.13 g/mol
Synonyms	4,5-Dihydroxybenzene-1,2-dicarboxylic Acid; 1,2-Benzenedicarboxylic Acid, 4,5-Dihydroxy-; DHPA; 4,5-Dihydroxy-o-phthalic Acid
EINECS	Contact for details

Quality Control

Our 4,5-Dihydroxyphthalic Acid is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and consistency. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and physical characteristics are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and oxidizing agents. Due to its acidic nature, ensure storage containers are made of compatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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