GHS Classification: Flammable Liquid (GHS02), Health Hazard (GHS08), Environmental Hazard (GHS09)
Hazard Statements: Highly flammable liquid and vapor; may cause drowsiness or dizziness; suspected of causing cancer; toxic to aquatic life with long lasting effects.
UN Number: UN 2398
Hazard Class: 3 (Flammable Liquids)
Packing Group: II
GTC-452

Ethers
Methyl tert-Butyl Ether
- CAS No.
- 1634-04-4
- Catalogue ID
- GTC-452
Methyl tert-Butyl Ether, CAS 1634-04-4. Source-derived identification, physical data and applications are provided for catalogue reference; request the current specification, COA and SDS for the required grade.
tert-Butyl methyl ether; MTBE; Methyl t-butyl ether; Methyl tertiary-butyl ether; 2-Methoxy-2-methylpropane; t-Butyl methyl ether; tert-BuOMe
Supplied catalogue source: GTC-452 · Page 31
Reference data — confirm before ordering or use
The information below is a structured migration from the supplied catalogue snapshot. It is not a current product specification, COA or SDS. Confirm the actual supplier, grade, batch documents, classification, packing and destination requirements for your enquiry.
Basic Information of Methyl tert-Butyl Ether
Methyl tert-Butyl Ether (CAS No. 1634-04-4) is a clear, colorless liquid with a distinctive, pungent odor. Its specific physical and chemical characteristics contribute to its broad utility:
| CAS No.: | 1634-04-4 |
|---|---|
| EC No.: | 216-653-1 |
| Linear Formula: | C₅H₁₂O |
| Molecular Weight: | 88.15 |
| Appearance: | Clear, colorless liquid |
| Odor: | Distinctive, pungent (ether-like) |
| Melting Point: | -108.6 °C |
| Boiling point | 55.2 °C |
| Density: | 0.7404 |
| Solubility: | Moderately soluble in water; highly miscible with most organic solvents. |
| Flash Point: | -10 °C |
| Purity: | Available in high-purity grades to ensure optimal performance in sensitive applications. |
| RIDADR: | UN 2398 3/PG 2 |
| Chemical Structure: | ![]() |
These properties enable MTBE to serve effectively as a solvent, a reaction medium, and a versatile building block in chemical synthesis.
Versatile Applications of Methyl tert-Butyl Ether
Chemical Solvent: An excellent solvent for a wide range of organic compounds, utilized in various chemical processes, extractions, and purifications.
Chemical Intermediate: Serves as a key intermediate in the synthesis of other chemicals, including isobutene derivatives, and is used in the production of various industrial compounds.
Pharmaceutical Industry: Employed as a solvent in the synthesis, purification, and recrystallization processes of active pharmaceutical ingredients (APIs) and other drug intermediates.
Laboratory & Research: A common solvent in organic synthesis and analytical procedures due to its inertness, high purity, and ease of evaporation. It is also used as an extractant.
Polymer Manufacturing: Can be used as a polymerization medium or an auxiliary agent in the production of certain polymers.
Industrial Processes: Finds application in various industrial processes requiring a versatile solvent with specific solvency and volatility characteristics.
Assured Quality: Our MTBE is rigorously tested to ensure high purity and consistent performance, meeting or exceeding stringent industry specifications.
Technical Expertise: Our knowledgeable team is always available to provide comprehensive support and answer any technical questions you may have regarding product application and handling.
Hazards Classification



Confirm the current commercial product record.
Include the required grade or purity, quantity, preferred packing, destination country/port and required document set.
- 01Current specification
- 02Batch or sample COA
- 03Product- and supplier-specific SDS
- 04Packing and shipping review
