Trimellitic anhydride
Trimellitic anhydride (CAS: 552-30-7; Formula: C9H4O5) is a versatile organic compound with a molecular weight of 192.13 g/mol. This carbonyl compound, classified as a carboxylic acid anhydride, serves as a key intermediate in organic synthesis. Its chemical structure allows for diverse reactions, making it valuable in the production of various polymers, plasticisers, and resins. Trimellitic anhydride is primarily utilised in industrial chemical synthesis.
- IUPAC
- Benzene-1,2,4-tricarboxylic anhydride
- Synonyms
- Benzene-1,2,4-tricarboxylic anhydride
Polymer Synthesis
Utilised as a monomer or cross-linking agent in the production of high-performance polymers and resins, including polyimides and polyesters known for their thermal stability and mechanical strength.
Plasticiser Production
Serves as a precursor for trimellitate esters, which function as plasticisers in PVC and other polymers, offering good performance at high temperatures.
Epoxy Resin Curing Agent
Acts as a curing agent for epoxy resins, enhancing their thermal resistance and electrical insulation properties, suitable for demanding applications.
Intermediate in Organic Synthesis
A valuable building block for the synthesis of complex organic molecules, dyes, and pharmaceuticals, owing to its reactive anhydride functionality.
| Molecular weight | 192.13 |
|---|---|
| Empirical formula | C9H4O5 |
| Assay | ≥97.0% (T) |
| Vapour pressure | <0.01 mmHg (20 °C) |
| Vapour density | 6.6 (vs air) |
| Melting point | 163-166 °C(lit.)164-168 °C |
Hazard statements
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
- H334May cause allergy or asthma symptoms if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P342
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | 227 °C / 440.6 °F |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 37-41-42/43 |
| Safety statements (S) | 22-26-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Trimellitic anhydride used for?
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Trimellitic anhydride is primarily used as a building block in chemical synthesis, particularly for producing polymers, plasticisers, and as a curing agent for epoxy resins.
What is the CAS number and formula for Trimellitic anhydride?
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The CAS number for Trimellitic anhydride is 552-30-7, and its chemical formula is C9H4O5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Trimellitic anhydride with an assay of ≥97.0% (T). We do not represent this product as USP, BP, or EP grade.
How should Trimellitic anhydride be handled safely?
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Trimellitic anhydride is a serious eye irritant and can cause respiratory and skin sensitisation. Handle with appropriate personal protective equipment, including a dust mask (N95), eyeshields, face shield, and gloves. Ensure adequate ventilation and avoid dust formation. Refer to the Safety Data Sheet for full details.
Is Trimellitic anhydride a controlled substance?
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Based on the provided data, Trimellitic anhydride is not indicated as a controlled substance.
How is Trimellitic anhydride packed, shipped, and exported?
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Trimellitic anhydride is supplied in appropriate packaging for safe handling, transport, and export, adhering to international shipping regulations for chemical substances.
How can I request a sample or quote for Trimellitic anhydride?
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To request a sample or a quotation for Trimellitic anhydride, please contact the Tech Serve Solutions sales team through our website or by phone.
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