Allyl ether
Allyl ether (CAS 557-40-4) is a flammable and toxic liquid with the linear formula (H2C=CHCH2)2O and a molecular weight of 98.14 g/mol. Characterised by its distinct odour, this compound is primarily utilised as a monomer in polymer science and materials research. Its reactive allyl groups make it a valuable building block for synthesising various polymers and organic compounds, contributing to advancements in materials development.
- IUPAC
- Diallyl ether

Polymer Synthesis
Allyl ether serves as a key monomer in the creation of polymers and copolymers. Its vinyl ether functionality allows for addition polymerisation, leading to materials with diverse properties suitable for various industrial applications.
Organic Synthesis Intermediate
The reactive nature of the allyl groups in allyl ether makes it a useful intermediate in organic synthesis. It can be employed in reactions such as cross-linking, functionalisation, and the preparation of complex organic molecules.
Materials Science Research
In materials science, allyl ether is investigated for its potential in developing novel materials. Its polymerisation characteristics can be exploited to engineer polymers with specific thermal, mechanical, or optical properties.
| Molecular weight | 98.14 |
|---|---|
| Linear formula | (H2C=CHCH2)2O |
| Assay | 98% |
| Boiling point | 94-95 °C(lit.) |
| Density | 0.803 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.416(lit.) |


Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- H311Toxic in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- 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 | -7 °C / 19.4 °F |
| Transport (UN / ADR) | UN 2360 6.1(3) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-20/21/22-36/37/38 |
| Safety statements (S) | 16-26-36/37/39-45 |
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 ether typically used for?
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Allyl ether is primarily used as a monomer in polymer synthesis and as an intermediate in organic synthesis, particularly within materials science research.
What is the CAS number and formula for Allyl ether?
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The CAS number for Allyl ether is 557-40-4, and its linear formula is (H2C=CHCH2)2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Allyl ether with a minimum assay of 98%. We do not represent this product as USP, BP, EP, or other pharmacopoeial grades unless explicitly stated.
How should Allyl ether be handled safely?
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Allyl ether is a highly flammable and toxic liquid. Handling requires appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (full-face respirator or specific cartridges). Ensure adequate ventilation and avoid ignition sources due to its low flash point (-7 °C).
How is Allyl ether packed and shipped by TSS?
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As a global supplier and exporter, Tech Serve Solutions ensures that Allyl ether is packed and shipped in compliance with all relevant regulations for hazardous materials, including UN 2360 classification.
How can I request a sample or quote for Allyl ether?
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To request a sample or obtain a quote for Allyl ether, please contact our sales team through the website or by phone, providing your specific requirements.
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