Tetrahydrophthalic Anhydride; THPA

Product Details

CAS No:85-43-8

MF:C8H8O3

Appearance:white flakes or granular powder

Specification:99.0%

UN number:UN 2698 8/PG III

Package:25kgs/bag

Supply Capacity:Tons

Product application:Tetrahydrophthalic Anhydride price, THPA manufacturer, CAS 85-43-8 supplier, Epoxy resin curing agent, Alkyd resin modification, THPA for pesticides, Raw material for coating resins, Electrical insulation materials, Tetrahydrophthalic acid anhydride uses, Plasticizer intermediates, Polyester resin components, High purity THPA.

Synonyms:1,2,3,6-Tetrahydrophthalic anhydride; THPA; 1,2,3,6-Tetrahydrophthalic anhydride; Δ4-Tetrahydrophthalic anhydride;Δ4-Tetrahydrophthalic anhydride;1,2,3,6-Tetrahydro phthalic anhydride (THPA);1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-;Tetrahydrophthalsureanhydrid;1,2,3,6-tetrahydrophthalicanhydride[qr];1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-, cis-;1,3-isobenzofurandione,3a,4,7,7a-tetrahydro-[qr]; Tetrahydrophthalic anhydride,"85-43-8; 1,2,3,6-Tetrahydrophthalic anhydride; TETRAHYDROPHTHALIC ANHYDRIDE; Tetrahydroftalanhydrid; Rikacid TH; Tetrahydrophthalic acid anhydride; 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-; Memtetrahydro phtalic anhydride; 4-Cyclohexene-1,2-dicarboxylic acid anhydride; 4-Cyclohexene-1,2-dicarboxylic anhydride; Anhydrid kyseliny tetrahydroftalove; 1,2,3,6-Tetrahydrophthalic acid anhydride; 1,3-Isobenzofurandione, tetrahydro-; NSC 82642; Tetrahydroftalanhydrid [Czech]; HSDB 846; Phthalic anhydride, 1,2,3,6-tetrahydro-; EINECS 201-605-4; EINECS 247-570-9; delta(4)-Tetrahydrophthalic anhydride; BRN 0082340; delta(sup 4)-Tetrahydrophthalic anhydride; delta-(sup4)-Tetrahydrophthalic anhydride; DTXSID3026516; 1,3,3a,4,7,7a-hexahydro-2-benzofuran-1,3-dione; AI3-22626; Anhydrid kyseliny tetrahydroftalove [Czech]; Tetrahydrophthalsaeureanhydrid; DTXCID306516; CHEBI:180650; EC 201-605-4; 5-17-11-00134 (Beilstein Handbook Reference); 26266-63-7; Rikacid THPA; UN2698; 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione; Tetrahydrophthalic anhydrides; Butadienemaleic anhydride adduct; delta(4)Tetrahydrophthalic anhydride; 1,2,3,6tetrahydrophthalic anhydride; 4Cyclohexene1,2dicarboxylic anhydride; cyclohexene-4,5-dicarboxylic anhydride; delta(sup4)Tetrahydrophthalic anhydride; delta(sup 4)Tetrahydrophthalic anhydride; Phthalic anhydride, 1,2,3,6tetrahydro; 1,2,3,6Tetrahydrophthalic acid anhydride; DELTA1-TETRAHYDROPHTHALIC ANHYDRIDE; DELTA4-TETRAHYDROPHTHALIC ANHYDRIDE; 4Cyclohexene1,2dicarboxylic acid anhydride; 1,3Isobenzofurandione, 3a,4,7,7atetrahydro; 1-cyclohexene-1,2-dicarboxylic acid anhydride; CYCLOHEX-4-EN-1,2-DICARBOXYLIC ANHYDRIDE; 1-CYCLOHEXENE-1,2-DICARBOXYLIC ACID, CYCLIC ANHYDRIDE; 4-CYCLOHEXENE-1,2-DICARBOXYLIC ACID ANHYDRIDE (CIS); 201-605-4; 247-570-9; 1-CYCLOHEXENE-1,2-DICARBOXYLIC ANHYDRIDE; 85-43-82426-02-0; 3a,4,7,7a-Tetrahydroisobenzofuran-1,3-dione; 3a,4,7,7a-Tetrahydro-2-benzofuran-1,3-dione; THPA; MFCD00065335; 4,7,3a,7a-tetrahydroisobenzofuran-1,3-dione; Tetrahydrophthalic Anhydride(THPA);3a,4,7,7a-Tetrahydroisobenzofuran-1,3-dione;3a,4,7,7a-Tetrahydroisobenzofuran-1,3-dione; 4-Cyclohexene-1, trans-; (3Ar,7ar)-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione; CHEMBL8001; NCIOpen2_001003; (3aR,7aS)-rel-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione; UN 2698 (Salt/Mix); SCHEMBL169100; WLN: T56 BVOV GUTJ; 3a,4,7,7a-Tetrahydro-isobenzofuran-1,3-dione; 1, 3a,4,7,7a-tetrahydro-; 1,3,6-Tetrahydrophthalic anhydride; BCA26823; NSC82642; PDA61423; Tox21_202210; BBL011743; NSC292900; SBB058772; STL163382; .DELTA.4-Tetrahydrophthalic anhydride; AKOS000119224; AKOS016352935; Phthalic anhydride,2,3,6-tetrahydro-; .delta.-4-Tetrahydrophthalic anhydride; CS-W019332; NSC-292900; 1, 3a,4,7,7a-tetrahydro-, trans-; CAS-85-43-8; cis-DELTA4-Tetrahydrophthalic Anhydride; 1,3,6-Tetrahydrophthalic acid anhydride; NCGC00249188-01; NCGC00259759-01; AC-19634; FT157585; trans-1,3,6-Tetrahydrophthalic anhydride; DB-050508; DB-057412; .delta.-(sup4)-Tetrahydrophthalic anhydride; NS00008366; ST51036807; EN300-18012; Cyclohex-4-en-1,2-dicarboxylic acid anhydride; D77853; 3a,4,7,7a-Tetrahydro-2-benzofuran-1,3-dione #; AB-131/40207535; Q26840954; F0001-2250; (7aS,3aR)-4,7,3a,7a-tetrahydroisobenzofuran-1,3-dione; 1,2,3,6-Tetrahydrophthalic anhydride;1,2,3,6-Tetrahydrophthalic anhydride, 4-Cyclohexene-1,2-dicarboxylic anhydride",152.150,C8H8O3,;

 

规格 / Specification

项目 / Item	标准 / Standards
外观 / Appearance	白色片状或颗粒状粉末 / White flakes or granular powder
气味 / Odor	典型 / Characteristic
鉴定 / Identification	IR/HPLC/Mass/NMR Spectrum
含量 / Content	≥99.0%

 

应用 / Applications:

四氢苯酐是一种重要的有机化工中间体，是顺酐的下游产品之一。它具有独特的环状结构，这种结构赋予了下游产品优异的耐候性、机械性能和电绝缘性。作为一种性能优良的新型有机酸酐类环氧树脂固化剂，四氢苯酐在化工、材料、农业和医药等多个领域都具有广泛的应用价值。

Tetrahydrophthalic anhydride is an important organic chemical intermediate and a downstream product of maleic anhydride. It possesses a unique cyclic structure, which endows downstream products with excellent weather resistance, mechanical properties, and electrical insulation. As a high-performance novel organic acid anhydride epoxy resin curing agent, tetrahydrophthalic anhydride has wide applications in various fields such as chemical engineering, materials science, agriculture, and medicine.

 

1: Tetrahydrophthalic anhydride as an epoxy resin curing agent: Tetrahydrophthalic anhydride is one of the most commonly used thermosetting anhydride curing agents in epoxy resin systems, improving the mechanical properties and chemical resistance of epoxy resins. Compared to traditional phthalic anhydride, tetrahydrophthalic anhydride is easier to mix with resins at room temperature, and the cured material exhibits higher mechanical strength and excellent electrical insulation properties. Therefore, it is widely used in the potting and casting of instrument transformers, insulators, and electronic components in the power industry, and is a key material for ensuring the stable operation of high-voltage electrical equipment.

 

2. Tetrahydrophthalic Anhydride is used for modifying alkyd and polyester resins: In the coatings industry, it is used to synthesize alkyd resins and unsaturated polyester resins. Coatings modified with tetrahydrophthalic anhydride have light colors, high transparency, and excellent adhesion, elasticity, gloss, water resistance, weather resistance, and chemical corrosion resistance. This makes it an ideal choice for producing high-grade automotive paints, industrial protective coatings, marine paints, as well as high-grade resin putties and air-drying coatings, effectively extending the service life of coatings in harsh environments.

 

3. Tetrahydrophthalic Anhydride is used in pesticide and pharmaceutical intermediates: It is an important raw material for pesticide intermediates, used in the production of various pesticide products, such as insecticides, fungicides (e.g., Captan and Folpet), and herbicides, protecting crops from fungal attacks. Simultaneously, it is also a raw material for pharmaceutical products; due to its reactive chemical properties, it plays the role of a molecular module in pharmaceutical synthesis, used to construct specific bioactive molecules.

 

4. Tetrahydrophthalic Anhydride in Plasticizer Production: As a raw material for plasticizers, tetrahydrophthalic anhydride can be used to manufacture high-performance tetrahydrophthalic acid ester plasticizers. These plasticizers are non-toxic, have low volatility, and good low-temperature flexibility. Adding them to polyvinyl chloride (PVC) or other synthetic rubbers can improve the material's cold resistance, heat resistance, and impact resistance, and significantly improve processing performance.

 

5. Tetrahydrophthalic Anhydride in Electronics, Electrical Appliances, and Aerospace: Due to its excellent comprehensive properties, tetrahydrophthalic anhydride is widely used in high-tech fields such as the electronics industry and aerospace.

 

6. Other Applications of Tetrahydrophthalic Anhydride: Tetrahydrophthalic anhydride is also used as an additive in coatings, a raw material for synthetic surfactants (such as wetting agents and emulsifiers), and in fiber treatment agents and lubricant additives.

 

包装 / Package:

25kgs/bag

 

运输编号 / UN number:

UN 2698 8/PG III

 

储存条件 / Store at:

密封保存于阴凉干燥处，避光避热。 / Sealed storage in a cool and dry place, avoid light and heat.

 

保质期 / Shelf Life:

两年 / Two years