Description

Dioxyisophthalic Acid is a high-purity aromatic dicarboxylic acid derivative, recognized for its unique chemical structure that incorporates hydroxyl functionalities. This compound is valued as a versatile and critical building block in advanced organic synthesis, enabling the creation of complex molecules with tailored properties. It is primarily sought by R&D laboratories and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for developing active ingredients, intermediates, and high-performance materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds requiring specific aromatic and acidic functionalities.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Polymer & Resin Modifier: Incorporated into the production of specialty polyesters, polyamides, and epoxy resins to enhance thermal stability, adhesion, and chemical resistance.
• Ligand & Chelating Agent: Functions as a building block for creating complexing agents and ligands used in catalysis and metal ion sequestration.
• Dye & Pigment Intermediate: Acts as a starting material for synthesizing high-value, color-fast organic dyes and pigments.
• Cross-linking Agent: Utilized in formulations to create cross-linked networks in coatings, adhesives, and composite materials.
• Academic & Industrial Research: A valuable reagent for chemical research, process development, and exploring new synthetic pathways.

Basic Information

Product Name	Dioxyisophthalic Acid
CAS No.	1786-87-4
Molecular Formula	C8H6O6
Molecular Weight	198.13 g/mol
Synonyms	5-Hydroxyisophthalic Acid; 3,5-Dihydroxybenzoic Acid (common misnomer, refers to related compound); 5-Carboxyresorcinol; Isophthalic Acid, 5-hydroxy-; 1,3-Benzenedicarboxylic acid, 5-hydroxy-; DOIPA (abbreviation); 5-Hydroxybenzene-1,3-dicarboxylic Acid
EINECS	217-247-4

Quality Control

Our Dioxyisophthalic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC, IR, and titration methods, to ensure it meets precise purity and consistency standards. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of heat.

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 (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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