1,2,4-Benzenetricarboxylic anhydride

1,2,4-Benzenetricarboxylic anhydride

​English Name :Trimellitic anhydride; 4-Carboxyphthalic anhydride; 1,3-dioxo-1,3-dihydro-2-benzofuran-5-carboxylic acid
CAS号:552-30-7
Molecular Formula:C9H4O5
Molecular weight: 192.1251
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Product Description

English Name

1,2,4-Benzenetricarboxylic anhydride

English SynonymsTrimellitic anhydride; 4-Carboxyphthalic anhydride; 1,3-dioxo-1,3-dihydro-2-benzofuran-5-carboxylic acid
CAS Number

552-30-7

Molecular FormulaC9H4O5
Molecular weight192.1251
Physical and chemical properties

Properties: Needle-shaped crystals.

Melting point: 168℃

Boiling point: 390℃

Relative density: 1.68

Flash point: 222℃

Solubility: Soluble in hot water and acetone, 2-butanone, dimethylformamide, ethyl acetate, and cyclohexanone. Soluble in anhydrous ethanol and reacts with it.



Molecular structure1762470843845197737226743808.gif
Product Uses

Used in the manufacture of polyester resins, polyimide resins, high-temperature resistant insulating materials, and polyvinyl chloride plasticizers, etc.


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