Molekula
Methyl tert-butyl ether, ACS
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Methyl tert-butyl ether (MTBE) is a high-octane gasoline additive and solvent used to improve fuel performance and reduce emissions. It is also employed in laboratory applications for extraction and as a calibration standard. This ACS-grade chemical has a CAS number of 1634-04-4, molecular formula (CH3)3COCH3, and a molecular weight of 88.15 g/mol. Store at ambient conditions. The product carries a **Danger** signal word due to its flammability and potential health hazards. Molekula supplies Methyl tert-butyl ether, ACS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless liquid |
| Grade | ACS |
| Water | max 100 mg/kg |
| Colour | <10 |
| Methanol | max 0.01% |
| Peroxide value | =<1ppm |
| Residue on Evaporation | max 1 mg/100ml |
| Methyl tert-butyl ether | min 99.9% |
| tert-Butanol | max 0.025% |
| Hydrocarbons to max. C8 | max 0.02% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | -28 °C |
| Transport Class | 3 |
| Packing Group | II |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90032628 |
| CAS Number | 1634-04-4 |
| Molecular Formula | (CH3)3COCH3 |
| Molecular Weight | 88.15 |
| SMILES | O(C)C(C)(C)C |
| UN Number | UN2398 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29091918 |
| Tariff Code | 2909199090 |
Safety & GHS
-
Flammable
GHS02
-
Health Hazard
GHS07
Hazard statements
- H225 Highly flammable liquid and vapour
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H336 May cause drowsiness or dizziness
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P233 Keep container tightly closed
- P243 Take precautionary measures against static discharge
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is Methyl tert-butyl ether (MTBE) commonly used for?
MTBE is primarily used as a gasoline oxygenate to improve octane ratings and reduce vehicle emissions, as well as a solvent in industrial and laboratory applications.
What is the chemical formula and molecular weight of MTBE?
The chemical formula is **(CH₃)₃COCH₃**, and the molecular weight is **88.15 g/mol**.
How should Methyl tert-butyl ether (ACS grade) be stored?
Store at **ambient temperature** in a tightly sealed container, away from ignition sources and oxidizing agents.
What grade of MTBE does Molekula supply, and is ACS grade available?
Molekula supplies **ACS grade** Methyl tert-butyl ether, meeting analytical standards for purity and consistency.
Can Molekula supply MTBE in bulk quantities?
Yes, Molekula can provide MTBE in bulk, with quantities tailored to meet your specific requirements—please contact us for details.
What documentation comes with an order of MTBE?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and batch-specific documentation to ensure compliance and traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.