CAS No.935-79-5Tetrahydrophtalic Anhydride THPA

cis-1,2,3,6-Tetrahydrophtalic Anhydride (THPA) 

Chemical Structural formula

Specifications and parameters

CAS number: 935-79-5 or 85-43-8
Product name: cis-1,2,3,6-Tetrahydrophthalic anhydride
Molecular formula: C₈H₈O₃
Molecular weight: 152.147
Density: 1.3 ± 0.1 g / cm³
Boiling point: 305.6 ± 42.0 ° C at 760 mmHg
Melting point: 98-102ºC
Flash point: 148.3 ± 25.1 ° C

Characteristics and Usage

Usage: [Use 1]  It can be used as a modifier of alkyd resin, epoxy resin curing agent, unsaturated polyester resin, pesticides and pharmaceutical raw materials. [Use 2] As an intermediate of organic synthesis raw materials, tetrahydrophthalic anhydride is generally used to produce alkyd resin Unsaturated polyester resins and coatings are also used as curing agents for epoxy resins, insecticides, vulcanization regulators, plasticizers and surfactants. As raw materials for the production of unsaturated polyester resins, tetrahydrophthalic anhydride is mainly used to improve the air-drying properties of resins, especially in the production of high-grade fat putty and air-drying coatings.

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