Molekula
2-Butanol
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
2-Butanol is a secondary alcohol with the formula CH3CH2CH(OH)CH3, widely used as a solvent, intermediate in chemical synthesis, and in the production of esters, perfumes, and pharmaceuticals. It is also employed in cleaning formulations and as a fuel additive. This clear, colorless liquid has a CAS number of 78-92-2 and a molecular weight of 74.12, with a signal word of Warning for safety classification. It is stable at ambient storage conditions. Molekula supplies 2-Butanol 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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500 mL — £38.40 per pack ex VAT · £46.08 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 | colourless, clear |
| Boiling Point | >98°C |
| Water | ≤0.2% |
| Assay | ≥98.6% |
| Isopropanol | <0.2% |
| Residue on Evaporation | <0.5% |
| Refractive Index (20ºC) | 1.395-1.398 |
| Chroma | ≤10 |
| Relative Density (20 °C) | 0.804-0.808 g/cm3 |
| tert-Butanol | <0.2% |
| Dibutyl ether | <0.2% |
| Free Acid (as C4H8O2) | <0.1% |
| Butanone | <0.2% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 27 °C |
| Transport Class | 3 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless liquid |
| Odour | Has a strong vinous odor |
| Melting Point | -114.7 °C |
| Boiling Point | 99.5 °C |
| Density | 0.81 (relative, water = 1) |
| Solubility (other solvents) | Very soluble in acetone; miscible in ethanol and ethyl ether |
| Vapour Pressure | 1.7 kPa at 20 °C |
| Refractive Index | 1.3978 |
| pKa | pKa = 17.6 (at 25 °C) |
| log P (octanol/water) | 0.61 |
Source: PubChem CID 6568 (HSDB, DrugBank, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 34401929 |
| CAS Number | 78-92-2 |
| IUPAC Name | butan-2-ol |
| EC Number | 201-158-5 |
| Molecular Formula | CH3CH2CH(OH)CH3 |
| Molecular Weight | 74.12 |
| Exact Mass | 74.0732 |
| SMILES | CCC(C)O |
| InChIKey | BTANRVKWQNVYAZ-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H10O/c1-3-4(2)5/h4-5H,3H2,1-2H3 |
| PubChem CID | 6568 |
| UN Number | UN1120 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29051450 |
| Tariff Code | 2905149000 |
Safety & GHS
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Flammable
GHS02
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Health Hazard
GHS07
Hazard statements
- H226 Flammable liquid and vapour
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H336 May cause drowsiness or dizziness
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- 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
- P337+313 If eye irritation persists get medical advice/attention
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
- 1-Methyl-1-propanol
- 1-Methylpropyl alcohol
- 2-Butyl alcohol
- Butan-2-ol
- Butanol secondaire
- Butylene hydrate
- Ethyl methyl carbinol
- Methyl ethyl carbinol
- sec-Butanol
- SEC-BUTYL ALCOHOL
Frequently asked questions
What is 2-Butanol commonly used for?
2-Butanol is primarily used as a solvent in coatings, adhesives, and cleaning products, as well as an intermediate in the production of methyl ethyl ketone (MEK), sec-butyl acetate and other chemicals.
What is the chemical formula and molecular weight of 2-Butanol?
The chemical formula is **CH₃CH₂CH(OH)CH₃**, and the molecular weight is **74.12 g/mol**.
How should 2-Butanol be stored?
Store in a tightly sealed container at **ambient temperature**, away from ignition sources and incompatible materials.
What grades of 2-Butanol does Molekula supply?
Molekula supplies **technical and reagent grades** of 2-Butanol; contact us for specific purity requirements.
Can Molekula supply 2-Butanol in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., drums, IBCs) for large-scale orders—please inquire for availability.
What documentation comes with a 2-Butanol order?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and batch-specific documentation.
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.