Description

Hexahydro-4-Methylphthalic Anhydride is a saturated, cycloaliphatic anhydride widely recognized for its utility as a reactive intermediate and curing agent. Its value lies in its ability to impart enhanced thermal stability, chemical resistance, and mechanical properties to final polymer products. This compound is essential for manufacturers in the epoxy resin, plasticizer, and specialty chemical industries seeking high-performance materials.

Application

• Primary curing agent or hardener for epoxy resin systems.
• Intermediate in the synthesis of plasticizers and polyester resins.
• Building block for high-performance coatings and adhesives requiring excellent weatherability.
• Key raw material in the production of corrosion-resistant laminates and composites.
• Used in electrical encapsulation and potting compounds.
• Intermediate for pharmaceutical and agrochemical active ingredients.

Basic Information

Product Name	Hexahydro-4-Methylphthalic Anhydride
CAS No.	34090-76-1
Molecular Formula	C9H12O3
Molecular Weight	168.19 g/mol
Synonyms	4-Methylhexahydrophthalic Anhydride; 4-Methyl-1,2-cyclohexanedicarboxylic Anhydride; 4-Methyltetrahydrophthalic Anhydride (hydrogenated form); MHHPA; Methylhexahydrophthalic Anhydride; 4-Methyl-4-cyclohexene-1,2-dicarboxylic Anhydride (hydrogenated); 1,2-Cyclohexanedicarboxylic Anhydride, 4-methyl-; Hexahydro-4-methyl-1,3-isobenzofurandione
EINECS	Contact for details

Quality Control

Our Hexahydro-4-Methylphthalic Anhydride is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, acidity, and color. A Certificate of Analysis (COA) documenting key parameters is provided with every shipment to guarantee consistent quality and traceability for your production processes.

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 absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 98.0%
Acid Value	Contact for details
Color (APHA)	≤ 100
Moisture (KF)	≤ 0.5%

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