Description

Hexahydro-3-Methylphthalic Anhydride is a saturated, cycloaliphatic anhydride derivative known for its high purity and reactivity. This compound is a critical intermediate in the synthesis of advanced polymers, resins, and fine chemicals, offering excellent thermal stability and processing characteristics. It is essential for manufacturers in the epoxy curing agent, plasticizer, and specialty chemical industries seeking to enhance product performance and durability.

Application

• Primary intermediate in the production of epoxy resin curing agents and hardeners.
• Key building block for synthesizing plasticizers for PVC and other polymers.
• Used in the manufacture of unsaturated polyester resins (UPR) for coatings and composites.
• Intermediate for corrosion inhibitors and lubricant additives.
• Starting material in pharmaceutical and agrochemical synthesis.
• Production of alkyd resins for paints and surface coatings.
• Used in research and development of advanced polymer materials.

Basic Information

Product Name	Hexahydro-3-Methylphthalic Anhydride
CAS No.	57110-29-9
Molecular Formula	C9H12O3
Molecular Weight	168.19 g/mol
Synonyms	3-Methylhexahydrophthalic Anhydride; 3-Methyl-1,2-cyclohexanedicarboxylic Anhydride; 3-Methyl-4-cyclohexene-1,2-dicarboxylic Anhydride, hydrogenated; MHHPA; 3-Methyltetrahydrophthalic Anhydride, hydrogenated; 4-Methylhexahydrophthalic Anhydride (isomer); Hexahydro-3-methyl-1,2-benzenedicarboxylic Anhydride
EINECS	Contact for details

Quality Control

Our Hexahydro-3-Methylphthalic Anhydride is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, acidity, and color. Certificates of Analysis (COA) documenting all critical parameters are available upon request 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 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)	≥ 98.0%
Acidity (as phthalic acid)	≤ 1.0%
Water Content (KF)	≤ 0.2%
Color (APHA)	≤ 100

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