Molekula
Butanone (Methyl ethyl ketone)
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
Butanone, also known as methyl ethyl ketone, is a volatile organic solvent used in paints, coatings, adhesives, and chemical synthesis. It is a clear, flammable liquid with a sharp, sweet odor. CAS: 78-93-3, molecular formula: C4H8O, molecular weight: 72.11 g/mol. Store at ambient temperature. Signal word: Danger. Molekula supplies Butanone 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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2.5 L — £38.90 per pack ex VAT · £46.68 inc. VAT
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 |
| Density | 0.804 - 0.807 |
| Refractive Index | 1.378 - 1.380 |
| Colour (Pt-Co) | ≤10 |
| Water | ≤0.1% |
| Identification | Conforms to reference |
| Purity (GC) | ≥99.5% |
| Acid (Based on acetic acid) | ≤0.003% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | -6 °C |
| Transport Class | 3 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless liquid |
| Odour | Acetone-like odor |
| Melting Point | -86.67 °C |
| Boiling Point | 79.59 °C |
| Density | 0.8 (relative, water = 1) |
| Water Solubility | 223 g/L at 25 °C |
| Solubility (other solvents) | Soluble in benzene, alcohol, and ether; miscible with oils |
| Vapour Pressure | 10.5 kPa at 20 °C |
| Refractive Index | 1.3788 |
| pKa | pKa = 14.70 |
| log P (octanol/water) | 0.29 |
Source: PubChem CID 6569 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90023181 |
| CAS Number | 78-93-3 |
| IUPAC Name | butan-2-one |
| EC Number | 201-159-0 |
| Molecular Formula | C2H5COCH3 |
| Molecular Weight | 72.11 |
| Exact Mass | 72.0575 |
| SMILES | CCC(=O)C |
| InChIKey | ZWEHNKRNPOVVGH-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3 |
| PubChem CID | 6569 |
| UN Number | UN1193 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2914.12.0000 |
| Tariff Code | 2914120000 |
Safety & GHS
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Flammable
GHS02
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Health Hazard
GHS07
Hazard statements
- EUH066 Repeated exposure may cause skin dryness or cracking
- H225 Highly flammable liquid and vapour
- H303 May be harmful if swallowed
- 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
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, 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 Butanone used for?
Butanone is commonly used as a solvent in paints, coatings, adhesives, and cleaning agents due to its fast evaporation and strong dissolving power.
What is the chemical formula and molecular weight of Butanone?
The formula is C2H5COCH3 (or C4H8O) and the molecular weight is 72.11 g/mol.
How should Butanone be stored?
Store at ambient temperature in a well-ventilated, cool, and dry place away from ignition sources.
What grade of Butanone does Molekula supply?
Molekula supplies Butanone in technical grade; custom grades are available upon request.
Can Molekula supply Butanone in bulk?
Yes, Molekula can supply Butanone in bulk quantities; please contact sales for volume pricing and delivery options.
What documentation comes with a Butanone order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with GHS standards.
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.