CIS-1,2,3,6-TETRAHYDROPHTHALIC ANHYDRIDE; >98%
- Createtime： 2026-04-14
- Updatetime： 2026-04-15
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
solid
|
| Molecular Weight |
152.15
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
White crystalline solid
|
Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Basic Information
Product Name: CIS-1,2,3,6-TETRAHYDROPHTHALIC ANHYDRIDE
CAS Number: 85-43-8
Alias: cis-4-Tetrahydrophthalic anhydride, THPA
Molecular Formula: C8H8O3
Molecular Weight: 152.15
IUPAC Name: (3aR,7aS)-3,4,7,7a-tetrahydroisobenzofuran-1,3-dione
Structural Information
- Structure Type: Cycloalkene dicarboxylic anhydride
- Structural Features: Contains cyclic olefin structure and acid anhydride functional group, high reactivity for esterification and crosslinking.
Physical & Chemical Properties
- Appearance: White crystalline solid
- Odor: Slight pungent odor
- Melting Point: 58–62 °C
- Boiling Point: 239 °C
- Density: 1.24 g/cm3
- Solubility: Soluble in ethanol, acetone, toluene; slightly soluble in water, hydrolyzes slowly in water
- Stability: Stable at room temperature; easy to react with water, alcohols and amines; avoid moisture.
Synthesis & Applications
Production Method
Prepared by Diels-Alder cycloaddition reaction of butadiene and maleic anhydride.
Main Applications
- Curing Agent: Epoxy resin curing agent for coatings, adhesives and composites.
- Organic Intermediate: Raw material for polyester, alkyd resin, plasticizer and pesticide synthesis.
- Chemical Reagent: Used in fine chemical and polymer material research.
Safety & Storage Instructions
- Hazard Classification: Irritant; causes severe irritation to skin, eyes and respiratory tract.
- Personal Protection: Wear dust mask, chemical goggles and resistant gloves; avoid inhalation and direct contact.
- Storage Condition: Sealed, cool, dry and ventilated place; strictly moisture-proof, keep away from water and alkaline substances.
- Transportation: General chemicals; prevent package damage and dampness.
Quality Specifications
- Purity: ≥98.0% (GC)
- Loss on Drying: ≤0.3%
- Melting Range: 58–62 °C
Information Summary Table
| Item | Specification |
| CAS Number | 85-43-8 |
| Product Name | CIS-1,2,3,6-TETRAHYDROPHTHALIC ANHYDRIDE |
| Synonym | cis-4-Tetrahydrophthalic anhydride, THPA |
| Molecular Formula | C8H8O3 |
| Molecular Weight | 152.15 |
| Appearance | White crystalline solid |
| Melting Point | 58–62 °C |
| Solubility | Soluble in organic solvents, hydrolyzes in water |
| Purity | ≥98.0% |
| Storage Condition | Sealed, dry place, moisture-proof |
| Hazard Property | Strong irritant |
| Main Usage | Epoxy curing agent, resin intermediate |
