Description

Hexahydro-1-Methylphthalic Anhydride is a saturated, alicyclic anhydride derivative known for its excellent stability and reactivity. This compound serves as a critical intermediate and curing agent in high-performance polymer synthesis, offering advantages in processing and final material properties. It is essential for manufacturers in the epoxy resin, plasticizer, and specialty chemical industries seeking to enhance product durability and thermal resistance.

Application

• Epoxy Resin Curing Agent: A key component for curing epoxy systems, imparting excellent heat resistance, chemical stability, and mechanical strength to coatings, adhesives, and composite materials.
• Polymer Intermediate: Used in the synthesis of polyester resins, alkyd resins, and other polymers where a saturated ring structure improves weatherability and reduces color formation.
• Plasticizer Production: Acts as a precursor for manufacturing specialty plasticizers, contributing to the flexibility and longevity of PVC and other plastic products.
• Chemical Synthesis: Serves as a versatile building block in organic synthesis for pharmaceuticals, agrochemicals, and fine chemicals, leveraging its reactive anhydride group.
• Electronic Encapsulants: Employed in formulations for potting and encapsulation compounds in the electronics industry due to its good electrical insulation properties and low shrinkage upon curing.

Basic Information

Product Name	Hexahydro-1-Methylphthalic Anhydride
CAS No.	48122-14-1
Molecular Formula	C9H12O3
Molecular Weight	168.19 g/mol
Synonyms	1-Methylhexahydrophthalic Anhydride; 1-Methyl-HHPA; 3-Methyl-1,2-cyclohexanedicarboxylic Anhydride; 4-Methylhexahydrophthalic Anhydride; Methylhexahydrophthalic Anhydride (MHPA); MHHPA; Methyl-1,2-cyclohexanedicarboxylic Anhydride; Hexahydro-3-methylphthalic Anhydride
EINECS	Contact for details

Quality Control

Our Hexahydro-1-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. Certificates of Analysis (COA) documenting these results are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Anhydride Content)	≥ 98.0 %
Acidity (as Phthalic Acid)	≤ 1.0 %
Color (APHA)	≤ 100
Water Content	≤ 0.1 %

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