1,2-Butadiene
- CAS NO.：590-19-2
- Empirical Formula: C4H6
- Molecular Weight: 54.09
- MDL number: MFCD00039911
- EINECS: 209-674-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:51:23
What is 1,2-Butadiene?
Definition
ChEBI: Buta-1,2-diene is a butadiene and a member of allenes.
Flammability and Explosibility
Extremely flammable
Properties of 1,2-Butadiene
| Melting point: | -136.2°C |
| Boiling point: | 10.8 °C(lit.) |
| Density | 0.6460 |
| refractive index | 1.4205 |
| storage temp. | Freezer |
| Water Solubility | 735mg/L at 20℃ |
| CAS DataBase Reference | 590-19-2(CAS DataBase Reference) |
| EPA Substance Registry System | 1,2-Butadiene (590-19-2) |
Safety information for 1,2-Butadiene
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Gas Cylinder Compressed Gases GHS04 |
| GHS Hazard Statements |
H220:Flammable gases H280:Gases under pressure |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P377:Leaking gas fire: Do not extinguish, unless leak can be stopped safely. P381:Eliminate all ignition sources if safe to do so. P410+P403:Protect from sunlight. Store in a well-ventilated place. |
Computed Descriptors for 1,2-Butadiene
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