Description

4,5-Dihydroxyisophthalic Acid is a multifunctional aromatic dicarboxylic acid derivative, distinguished by its two phenolic hydroxyl groups. This unique structure makes it a valuable high-purity building block for synthesizing advanced organic materials and functional polymers. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and specialty polymer industries for creating complex molecules with specific properties.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring rigid, functionalized aromatic cores.
• Metal-Organic Framework (MOF) Synthesis: Used as an organic linker due to its multiple coordination sites, enabling the construction of porous materials for gas storage, separation, and catalysis.
• Functional Polymer Monomer: Incorporated into polyesters, polyamides, and epoxy resins to impart enhanced thermal stability, rigidity, and potential for further chemical modification.
• Agrochemical Synthesis: Acts as a building block for developing novel herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Intermediate: Utilized in the production of high-performance dyes and organic pigments, leveraging its conjugated aromatic system.
• Chelating Agent Precursor: The hydroxyl and carboxyl groups make it suitable for developing ligands for metal ion chelation in various industrial processes.
• Research & Development: Employed in academic and industrial labs for exploring new synthetic methodologies and material science applications.

Basic Information

Product Name	4,5-Dihydroxyisophthalic Acid
CAS No.	4707-77-1
Molecular Formula	C8H6O6
Molecular Weight	198.13 g/mol
Synonyms	4,5-Dihydroxybenzene-1,3-dicarboxylic Acid; Isophthalic Acid, 4,5-Dihydroxy-; 1,3-Benzenedicarboxylic acid, 4,5-dihydroxy-; 4,5-Dihydroxy-1,3-benzenedicarboxylic Acid; DHIPA
EINECS	Contact for details

Quality Control

Our 4,5-Dihydroxyisophthalic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting industry and customer specifications. Certificates of Analysis (COA) detailing all test results are provided and available upon request to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
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.