Trimellitic Anhydride

Other Trading Names:

  • 1,2,4-Benzenetricarboxylic anhydride
  • Benzene-1,2,4-tricarboxylic anhydride
  • Trimellitic acid 1,2-anhydride
  • Trimellitic acid 1,2-anhydride
  • Anhydro Trimellitic acid
  • TMAN

CAS Number: 552-30-7 

HS Code: 29173950

Types of Packaging:

  • 25 Kg Drum
Inquiry right-arrow $100.00
Availability: In stock
Trimellitic Anhydride

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Chemical Name

Trimellitic Anhydride

Cas Number



White Powder

Molecular Formula


Molecular Weight

192.13 g/mol

Melting Point


Boiling Point


Flash Point


Water Solubility

Sparingly Soluble in Water




1.54 g/cm³


99% Min

Chemical Description

  • Trimellitic Anhydride is an organic compound and white powder that is sparingly soluble in water.
  • TMA is derived from trimellitic acid and it has three carboxylic acid groups and has a molecular formula C9H4O5.
  • It is sparingly soluble in water but highly soluble in organic solvents like benzene, acetone, and ethanol.
  • It is used as an intermediate in the synthesis of materials such as Dyestuff Intermediates, Syntheses Material Intermediates, and Insulation Materials.
  • It is primarily used as a curing agent for alkyl and epoxy, plasticizers, floor coverings, walls, paints, and wire and cable insulation.
  • It is used in the synthesis of many high-performing polymers and special chemicals.
  • Its most significant use is in the manufacturing of polyester resins, where it acts as a key element.
  • These polyester resins are used in coatings, sealants, adhesives, and composite materials due to their excellent chemical resistance, heat resistance, and durability.
  • In polymer formulation, TMA acts as a crosslinking agent. Crosslinking agents improve the mechanical properties and thermal stability of polymers by forming chemical bonds between polymer chains.
  • Trimellitic Anhydride serves as a building block for the synthesis of various other organic compounds used in the chemical industry.
  • It is widely used in research laboratories to carry out studies related to chemical reactions, polymer chemistry, and material science.
  • TMA is used to manufacture some plasticizers. These plasticizers are added to polymers to improve flexibility, durability, and workability. They are used in PVC products, wires, automotive interiors, and flooring materials.
  • Store TMA in a cold, dry, and well-ventilated place. Do not place under direct sunlight and store below 30°C.
  • Avoid exposure to moisture, as it can react with water to produce trimellitic acid, which reduces its quality and purity.
  • It should be handled with care as described because it can cause skin irritation on direct contact.
  • This white powder is an organic compound available in 25 kg drum packaging with dimensions 15X10X15 cm.
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Trimellitic Anhydride