Description

3,6-Dimethyl-4-Cyclohexene-1,2-Dicarboxylic Anhydride is a versatile cyclic anhydride monomer used in the synthesis of advanced polymers and specialty chemicals. Its reactive anhydride group makes it a valuable building block for creating high-performance materials with tailored properties. This product is essential for manufacturers in the polymer, resin, and fine chemical industries seeking to develop products with enhanced thermal stability, mechanical strength, and chemical resistance.

Application

• Epoxy Resin Curing Agent: Acts as a reactive hardener for epoxy resins, contributing to improved heat resistance and mechanical properties in coatings, adhesives, and composites.
• Polymer Intermediate: Serves as a key monomer for the production of polyimides, polyamides, and alkyd resins used in high-temperature and engineering plastic applications.
• Fine Chemical Synthesis: Utilized as a versatile intermediate in organic synthesis for pharmaceuticals, agrochemicals, and liquid crystal materials.
• Surface Coatings: Incorporated into formulations for industrial and protective coatings to enhance durability, adhesion, and chemical resistance.
• Plasticizer and Modifier: Used to modify the properties of various polymers, improving flexibility, processability, and end-performance.

Basic Information

Product Name	3,6-Dimethyl-4-Cyclohexene-1,2-Dicarboxylic Anhydride
CAS No.	2651-48-1
Molecular Formula	C10H12O3
Molecular Weight	180.20 g/mol
Synonyms	4-Cyclohexene-1,2-dicarboxylic anhydride, 3,6-dimethyl-; 3,6-Dimethyl-4-cyclohexene-cis-1,2-dicarboxylic anhydride; 3,6-Dimethyl-1,2,3,6-tetrahydrophthalic anhydride; 3,6-Dimethyl-δ⁴-tetrahydrophthalic anhydride; 3,6-DMTHPA; 3,6-Dimethyl-4-cyclohexene-1,2-dicarboxylic acid anhydride; Tetrahydro-3,6-dimethylphthalic anhydride
EINECS	220-186-8

Quality Control

Our 3,6-Dimethyl-4-Cyclohexene-1,2-Dicarboxylic Anhydride is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets the high standards required for industrial and fine chemical applications. A Certificate of Analysis (COA) documenting purity and key specifications is provided with every shipment.

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 compromise product quality. Keep away from incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	65 - 75 °C
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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