Allyl butyrate
Allyl butyrate (CAS: 2051-78-7) is an organic compound with the chemical formula CH3CH2CH2CO2CH2CH=CH2 and a molecular weight of 128.17 g/mol. This ester, characterised by its fruity aroma, is primarily utilised as a building block in polymer science and materials science, serving as a monomer in various polymerisation processes. Its distinctive properties make it a valuable component in the synthesis of specialised polymers.

Monomer for Polymer Synthesis
Allyl butyrate serves as a reactive monomer in the production of polymers. Its allyl group allows for participation in free-radical polymerisation, contributing to the formation of polymer chains with specific characteristics.
Materials Science Applications
In materials science, Allyl butyrate can be incorporated into formulations to modify material properties. It is employed in the development of specialised coatings, adhesives, and resins.
Organic Synthesis Intermediate
This compound can function as an intermediate in various organic synthesis pathways. Its ester and allyl functionalities allow for diverse chemical transformations.
| Molecular weight | 128.17 |
|---|---|
| Linear formula | CH3CH2CH2CO2CH2CH=CH2 |
| Assay | 99% |
| Boiling point | 44-45 °C/15 mmHg(lit.) |
| Density | 0.902 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.414(lit.) |


Hazard statements
- H226Flammable liquid and vapour
- H301Toxic if swallowed
- H311Toxic in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P312Call a POISON CENTER if you feel unwell
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 42 °C / 107.6 °F |
| Transport (UN / ADR) | UN 1992 6.1(3) / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 10-21/22-36/37/38 |
| Safety statements (S) | 16-26-36/37 |
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 Allyl butyrate used for?
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Allyl butyrate is primarily used as a monomer in polymer synthesis and in various applications within materials science. It also serves as an intermediate in organic synthesis.
What is the CAS number and chemical formula for Allyl butyrate?
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The CAS number for Allyl butyrate is 2051-78-7, and its chemical formula is CH3CH2CH2CO2CH2CH=CH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Allyl butyrate with an assay of 99%. This product is not intended for pharmaceutical, food, or medical applications, and TSS does not represent it as USP, BP, or EP grade.
How should Allyl butyrate be handled and stored safely?
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Allyl butyrate is classified as a flammable liquid and is harmful if swallowed, in contact with skin, or inhaled. It can cause skin and serious eye irritation, and may cause respiratory irritation. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area, away from ignition sources.
How is Allyl butyrate packed, shipped, and exported?
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Tech Serve Solutions packages and exports Allyl butyrate in compliance with all relevant international shipping regulations. Specific packaging details are available upon request.
How can I request a sample or quote for Allyl butyrate?
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To request a sample or a quote for Allyl butyrate, please contact our sales team via the website or by phone. Please provide your specific requirements.
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