3-Methyl-1,3-butanediol
- CAS NO.：2568-33-4
- Empirical Formula: C5H12O2
- Molecular Weight: 104.15
- MDL number: MFCD00059655
- EINECS: 459-270-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-06-16 21:18:09
What is 3-Methyl-1,3-butanediol?
Chemical properties
Clear colorless liquid
The Uses of 3-Methyl-1,3-butanediol
3-Methyl-1,3-butanediol is a useful compound in carbon oxygen coupling reactions.
Definition
3-methyl-1,3-butanediol (BDO) is a alkanediols. BDO is preferentially dehydrated into two unsaturated alcohol isomers such as 3M2B1ol and 2-methyl-3-buten-2-ol (2M3B2ol) over CeO2 catalyst at 375 °C. It was found that the selectivity to 3-methyl-3-buten-1-ol was increased by the coke deposition over Al2O3 catalysts in the dehydration of 3-methyl-1,3-butanediol at 200 °C[1].
References
[1] Yuki, et al. "Dehydration of 3-methyl-1,3-butanediol over Al2O3 modified with carbon." Applied Catalysis A General (2014).
Properties of 3-Methyl-1,3-butanediol
| Melting point: | 50.86°C (estimate) |
| Boiling point: | 203-205 °C(lit.) |
| Density | 0.976 g/mL at 20 °C(lit.) |
| vapor pressure | 2.8hPa at 24.85℃ |
| refractive index | n |
| Flash point: | 105 °C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Completely miscible in water |
| form | clear liquid |
| pka | 14.90±0.29(Predicted) |
| Specific Gravity | 0.966 |
| color | Colorless to Almost colorless |
| Water Solubility | 1g/L at 20℃ |
| BRN | 1209241 |
| CAS DataBase Reference | 2568-33-4 |
| EPA Substance Registry System | 1,3-Butanediol, 3-methyl- (2568-33-4) |
Safety information for 3-Methyl-1,3-butanediol
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 3-Methyl-1,3-butanediol
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