2,3-Dimethyl-2,3-epoxybutane
2,3-Dimethyl-2,3-epoxybutane (CAS: 5076-20-0), a cyclic ether with the molecular formula C6H12O and a molecular weight of 100.16 g/mol, is a valuable organic building block. Characterised by its epoxide functional group, it serves as a reactive intermediate in various chemical synthesis pathways. Its primary utility lies in organic chemistry research and development, contributing to the construction of more complex molecular structures.
- IUPAC
- 2,2,3,3-Tetramethyloxirane,2,3-Dimethyl-2-butene epoxide,2,3-Dimethyl-2-butene oxide,2,3-Epoxy-2,3-dimethylbutane,Tetramethylethylene oxide
- Synonyms
- 5076-20-02,2,3,3-Tetramethyloxirane2,3-Dimethyl-2-butene epoxide2,3-Dimethyl-2-butene oxide2,3-Epoxy-2,3-dimethylbutaneTetramethylethylene oxide

Organic Synthesis Intermediate
As an epoxide, 2,3-Dimethyl-2,3-epoxybutane readily undergoes ring-opening reactions. This makes it a versatile intermediate for introducing specific functional groups or carbon frameworks into organic molecules during complex synthetic routes.
Research and Development
This compound is employed in academic and industrial research laboratories for exploring novel chemical reactions and developing new chemical entities. Its defined structure allows for predictable reactivity in various synthetic transformations.
Building Block for Heterocycles
The epoxide ring can be leveraged to construct heterocyclic compounds, which are important structural motifs in pharmaceuticals and materials science. Its symmetrical structure can simplify synthetic outcomes in certain reactions.
| Molecular weight | 100.16 |
|---|---|
| Empirical formula | C6H12O |
| Assay | 99% |
| Boiling point | 90-92 °C/760 mmHg |
| Density | 0.781 g/mL at 25 °C |
| Refractive index | n20/D 1.396 |


Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -3 °C / 26.6 °F |
| Transport (UN / ADR) | UN 1993BE 3 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-22 |
| Safety statements (S) | 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 2,3-Dimethyl-2,3-epoxybutane used for?
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2,3-Dimethyl-2,3-epoxybutane is primarily used as a reactive intermediate in organic synthesis and as a building block in chemical research and development for constructing more complex molecular structures.
What is the CAS number and formula for 2,3-Dimethyl-2,3-epoxybutane?
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The CAS number for 2,3-Dimethyl-2,3-epoxybutane is 5076-20-0, and its molecular formula is C6H12O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,3-Dimethyl-2,3-epoxybutane with an assay of 99%. This product is not represented as USP, BP, EP, or other pharmacopoeia grades.
What are the safety and handling considerations for 2,3-Dimethyl-2,3-epoxybutane?
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2,3-Dimethyl-2,3-epoxybutane is a highly flammable liquid and vapour (H225) and is harmful if swallowed (H302). Handling requires strict safety precautions, including the use of appropriate personal protective equipment such as eyeshields, gloves, and a suitable respirator, and working in a well-ventilated area away from ignition sources.
How is 2,3-Dimethyl-2,3-epoxybutane packed, shipped, and exported?
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2,3-Dimethyl-2,3-epoxybutane is typically packed and shipped in compliance with regulations for flammable liquids. As a global supplier, Tech Serve Solutions has extensive experience in exporting chemicals worldwide.
How can I request a sample or quote for 2,3-Dimethyl-2,3-epoxybutane?
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To request a sample or a quotation for 2,3-Dimethyl-2,3-epoxybutane, please contact our sales team through the website or by phone.
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