2-Methyl-2-vinyloxirane
2-Methyl-2-vinyloxirane (CAS: 1838-94-4, Formula: C5H8O) is a versatile epoxide monomer. Possessing a molecular weight of 84.12 g/mol, this compound is primarily utilised in polymer science and materials science applications. Its reactive epoxide ring allows for polymerisation and functionalisation, making it a valuable building block in the synthesis of advanced materials and specialty polymers.
- IUPAC
- Isoprene monoxide

Polymerisation Monomer
2-Methyl-2-vinyloxirane serves as a key monomer in the synthesis of various polymers. Its epoxide functionality can undergo ring-opening polymerisation to create polymer chains with specific properties.
Materials Science Intermediate
This epoxide is an important intermediate in materials science for the development of novel functional materials. It can be incorporated into polymer backbones or used to modify existing polymer structures.
Organic Synthesis
The compound's reactive nature makes it a useful reagent in organic synthesis for introducing epoxide functionalities or for further chemical transformations leading to complex molecules.
| Molecular weight | 84.12 |
|---|---|
| Empirical formula | C5H8O |
| Assay | 95% |
| Boiling point | 80-81 °C(lit.) |
| Density | 0.857 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.416(lit.) |
| Storage temperature | 2-8°C |


Hazard statements
- H225Highly flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -8 °C / 17.6 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/37/38 |
| Safety statements (S) | 16-26-36/37/39 |
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 2-Methyl-2-vinyloxirane primarily used for?
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2-Methyl-2-vinyloxirane is primarily used as a monomer in polymer science and an intermediate in materials science for synthesising specialty polymers and functional materials.
What are the CAS number and chemical formula for 2-Methyl-2-vinyloxirane?
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The CAS number for 2-Methyl-2-vinyloxirane is 1838-94-4, and its chemical formula is C5H8O.
What grade and purity does Tech Serve Solutions supply for 2-Methyl-2-vinyloxirane?
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Tech Serve Solutions supplies 2-Methyl-2-vinyloxirane with an assay of 95%. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 2-Methyl-2-vinyloxirane be handled safely?
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Handling 2-Methyl-2-vinyloxirane requires caution due to its flammability and potential to cause skin, eye, and respiratory irritation. It is classified as Danger with hazards including H225 (Highly flammable liquid and vapour), H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including safety glasses, face shields, and suitable gloves, should be worn. Work should be conducted in a well-ventilated area or with respiratory protection.
Is 2-Methyl-2-vinyloxirane a controlled substance?
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The provided data does not indicate that 2-Methyl-2-vinyloxirane is a controlled substance.
How is 2-Methyl-2-vinyloxirane packed, shipped, and exported?
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2-Methyl-2-vinyloxirane is shipped as a flammable liquid (UN 1993, Class 3, Packing Group II). Storage is recommended at 2-8°C. Tech Serve Solutions, as a global supplier, handles all aspects of packaging, shipping, and export compliance for this chemical.
How can I request a quote or sample of 2-Methyl-2-vinyloxirane?
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To request a quote or sample of 2-Methyl-2-vinyloxirane, please contact the Tech Serve Solutions sales team through our website or by phone.
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