Description

1,2-Dihydrophthalic Acid is a versatile cyclic dicarboxylic acid derivative, serving as a key intermediate in advanced organic synthesis. Its partially reduced phthalic acid structure makes it valuable for creating complex molecules with specific functional properties. This compound is primarily utilized by the pharmaceutical, agrochemical, and specialty polymer industries for research and production purposes.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Polymer & Resin Modifier: Acts as a monomer or cross-linking agent in the manufacture of specialty polyesters, alkyd resins, and plasticizers.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and other high-value organic compounds.
• Research & Development: Employed in academic and industrial R&D labs for exploring new synthetic pathways and material properties.
• Corrosion Inhibitor Formulation: A component in specialty chemical blends designed to protect metal surfaces.

Basic Information

Item	Details
Product Name	1,2-Dihydrophthalic Acid
CAS No.	22919-28-4
Molecular Formula	C8H8O4
Molecular Weight	168.15 g/mol
Synonyms	1,2-Dihydrophthalic Acid; 1,2-Dihydro-1,2-benzenedicarboxylic Acid; 1,2,3,6-Tetrahydrophthalic Acid; 4-Cyclohexene-1,2-dicarboxylic Acid; NSC 403697; 1,2-Dihydrobenzene-1,2-dicarboxylic Acid; delta4-Tetrahydrophthalic Acid
EINECS	Contact for details

Quality Control

Our 1,2-Dihydrophthalic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with key parameters, and our quality systems support compliance with cGMP and ISO standards for industrial and research applications.

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 quality. 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%
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.