Overview
Trimethyl trimellitate (CAS 2459-10-1 ) is the trimethyl ester of trimellitic acid, used in polymer chemistry as a reactive intermediate and plasticizer precursor. It functions primarily as a building block in the synthesis of higher-performance esters.
In plastics and polymer manufacturing, it serves as a monomer for producing trimellitate plasticizers through transesterification with higher alcohols. This process offers improved heat resistance over traditional phthalate-based alternatives.
Coating formulators use it as a crosslinking intermediate in polyester and alkyd resin systems where precise functionality is required. Low volatility and specific process requirements make it an ideal choice for these industrial applications.
In adhesive and sealant formulations, it contributes to polymer backbone construction where thermal stability is a qualification criterion. It ensures durability under prolonged service conditions for high-performance bonding agents.
It also functions as a reactive plasticizer precursor in PVC compounding development. This is particularly useful where end-use specifications demand low migration and high-temperature performance in demanding environments.
Trimethyl trimellitate is supplied as a liquid and is available in technical grade. This is the standard specification for industrial polymer and coating applications requiring consistent chemical properties.
Packaging typically ranges from drums to IBC containers depending on order volume and logistical needs. Our supply chain ensures that the product meets the necessary industrial standards for manufacturing and processing.
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Physical Properties
| Melting Point | -13 °C |
| Boiling Point | 194 °C @ Press: 12 Torr |
| Density | 1.261 g/cm³ |
| Flash Point | >230 °F |
| Appearance | Clear colorless to yellow viscous liquid |
| Color | Colorless to Light orange to Yellow |
| Form | clear liquid |
| Water Solubility | 1.11g/L at 20℃ |
| Vapor Pressure | 0.01 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.523(lit.) |
| Log P | 1.96 at 25℃ |
Safety & Handling
GHS09 Hazard Statements H411 Toxic to aquatic life with long lasting effects Precautionary Statements P273 Avoid release to the environment. P391 Collect spillage. P501 Dispose of contents/container in accordance with local regulations.
Trade & Regulatory
| HS Code | 29173990 |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 2459-10-1
- EC Number
- 219-547-3
- Mol. Weight
- 252.22
- HS Code
- 29173990
- Category
- Organic Acids