Description

cis-1,3-Cyclohexanedicarboxylic Anhydride is a versatile cyclic anhydride monomer used in the synthesis of high-performance polymers and specialty chemicals. Its unique cis-configuration and reactive anhydride group make it a valuable building block for creating materials with tailored thermal and mechanical properties. This compound is essential for manufacturers in the polymer, resin, and pharmaceutical intermediate sectors seeking to develop advanced, durable products.

Application

• Epoxy Resin Curing Agent: Used as a hardener for epoxy resins, imparting excellent heat resistance and mechanical strength to coatings, adhesives, and composite materials.
• Polymer Synthesis: Serves as a key monomer for producing polyimides, polyamides, and polyester resins, which are used in high-temperature plastics and films.
• Pharmaceutical Intermediate: Employed in the synthesis of active pharmaceutical ingredients (APIs) and other complex organic molecules.
• Crosslinking Agent: Functions as a crosslinker in alkyd and other specialty resins to enhance durability and chemical resistance.
• Organic Synthesis Reagent: Utilized in various organic reactions, including ring-opening polymerizations and as a precursor for diacids.
• Surface Coating Formulations: Incorporated into powder coatings and industrial finishes to improve performance and longevity.

Basic Information

Product Name	cis-1,3-Cyclohexanedicarboxylic Anhydride
CAS No.	4355-31-1
Molecular Formula	C8H10O3
Molecular Weight	154.16 g/mol
Synonyms	1,3-Cyclohexanedicarboxylic Anhydride, cis-Hexahydroisophthalic Anhydride; cis-1,3-CHDA; HHIPA; cis-Cyclohexane-1,3-dicarboxylic Anhydride; 4-Cyclohexene-1,2-dicarboxylic Anhydride, hexahydro-; Hexahydro-1,3-isobenzofurandione
EINECS	224-433-5

Quality Control

Our cis-1,3-Cyclohexanedicarboxylic Anhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay, identification, and impurity profiling, to ensure it meets precise specifications for industrial and fine chemical applications. Certificates of Analysis (COA) documenting purity, physical properties, and other critical parameters 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, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm

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