Product Name: 1,2,3,6-Tetrahydrophthalic Anhydride
CAS Number: 85-43-8
EC / EINECS No.: 201-605-4
Synonyms: THPA; Tetrahydrophthalic anhydride
Specification: Purity 99%; Melting point 101-102 deg C; Flash point 157 deg C; pKa 3.84
Appearance: White crystal
Package: 25kg/drum
Application: Used as an intermediate for insecticides and fungicides, and in alkyd resins, unsaturated polyester resins, plasticizers and curing agents
What is 1,2,3,6-Tetrahydrophthalic anhydride CAS 85-43-8?
1,2,3,6-Tetrahydrophthalic anhydride is a white crystal with a temperature range of 103-104 ℃. It is soluble in general solvents and slightly soluble in petroleum ether. Dissolved in DCM, ethyl acetate, toluene
Specification
| Item | Specification |
| Purity | 99% |
| Melting point | 101-102°C |
| pKa | 3.84[at 20 ℃] |
| MW | 152.15 |
| Flash point | 157°C |
| Vapor pressure | 0.021Pa at 20℃ |
| Refractive index | 1.4810 (estimate) |
Application
1,2,3,6-Tetrahydrophthalic anhydride is an intermediate used in the preparation of insecticides such as pyrethroids and fungicides like carbendazim. It can also be used in the production of alkyd resins, unsaturated polyester resins, plasticizers, and curing agents.
Packing
Usually packed in 25kg/drum,and also can be do customized package.













