3,5,5-Trimethylhexyl acrylate
3,5,5-Trimethylhexyl acrylate (CAS: 45125-03-9) is an organic ester with the linear formula H₂C=CHCO₂CH₂CH₂CH(CH₃)CH₂C(CH₃)₃. As an acrylic monomer, it serves as a valuable building block in polymer synthesis and chemical manufacturing. Its specific branched alkyl chain contributes unique properties to polymers, making it useful in materials science applications. Tech Serve Solutions offers this technical grade chemical for research and industrial use.
- Synonyms
- 45125-03-9H2C=CHCO2CH2CH2CH(CH3)CH2C(CH3)3

Polymer Synthesis
3,5,5-Trimethylhexyl acrylate is utilised as a monomer in the production of specialty polymers and copolymers. Its incorporation can modify polymer properties such as flexibility, adhesion, and hydrophobicity.
Materials Science
This acrylate ester finds application in the development of advanced materials. The unique structure of the trimethylhexyl group can impart desirable characteristics to resins, coatings, and adhesives.
Chemical Intermediate
It functions as a reactive intermediate in organic synthesis, enabling the creation of more complex molecules for various chemical industries. The ester functionality allows for further chemical transformations.
| Linear formula | H2C=CHCO2CH2CH2CH(CH3)CH2C(CH3)3 |
|---|---|
| Grade | technical grade |
| Boiling point | 55 °C/0.4 mmHg(lit.) |
| Density | 0.875 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.437(lit.) |
| Contains / stabiliser | 15-20 ppm monomethyl ether hydroquinone as inhibitor |
| Melting point | −34 °C(lit.) |


Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P305IF IN EYES
| Flash point | 89 °C / 192.2 °F |
|---|---|
| Transport (UN / ADR) | UN 3082 9/PG 3 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 36/37/38-51/53 |
| Safety statements (S) | 26-28-61 |
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 3,5,5-Trimethylhexyl acrylate used for?
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3,5,5-Trimethylhexyl acrylate is primarily used as a monomer in polymer synthesis and as a chemical intermediate in organic chemistry, contributing unique properties to resulting materials.
What is the CAS number and chemical formula for 3,5,5-Trimethylhexyl acrylate?
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The CAS number is 45125-03-9, and the linear chemical formula is H₂C=CHCO₂CH₂CH₂CH(CH₃)CH₂C(CH₃)₃.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5,5-Trimethylhexyl acrylate in technical grade. We do not represent this product as USP, BP, EP, or for nutraceutical or food applications.
What are the safety and handling requirements for 3,5,5-Trimethylhexyl acrylate?
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This chemical is a Warning substance (GHS07, GHS09) and is classified with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), H335 (may cause respiratory irritation), and H411 (toxic to aquatic life with long lasting effects). Always handle in a well-ventilated area, wear appropriate personal protective equipment, and avoid release to the environment.
How is 3,5,5-Trimethylhexyl acrylate packed, shipped, and exported?
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Tech Serve Solutions professionally packs, ships, and exports chemicals globally, adhering to all relevant transportation regulations to ensure safe and compliant delivery.
How can I request a sample or a quote for 3,5,5-Trimethylhexyl acrylate?
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Please contact our sales team via the website or by phone to request a sample or a quotation for 3,5,5-Trimethylhexyl acrylate.
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