cis-3,4-Dichlorocyclobutene
- CAS NO.：2957-95-1
- Empirical Formula: C4H4Cl2
- Molecular Weight: 122.98
- MDL number: MFCD00143990
- EINECS: 220-981-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:47:41
What is cis-3,4-Dichlorocyclobutene?
Purification Methods
Distil the cyclobutene at 55mm through a 36-in platinum spinning band column, a fore-run b 58-62o/55mm is mainly 1,4-dichlorobutadiene. When the temperature reaches 70o the reflux ratio is reduced to 10:1 and the product is collected quickly. It is usually necessary to apply heat frequently with a sun lamp to prevent any dichlorobutadiene from clogging the exit in the early part of the distillation [Pettit & Henery Org Synth 50 36 1970].
Properties of cis-3,4-Dichlorocyclobutene
| Boiling point: | 74-76 °C55 mm Hg(lit.) |
| Density | 1.302 g/mL at 20 °C(lit.) |
| refractive index | n |
| Flash point: | 55 °C |
| storage temp. | 2-8°C |
Safety information for cis-3,4-Dichlorocyclobutene
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H226:Flammable liquids |
Computed Descriptors for cis-3,4-Dichlorocyclobutene
New Products
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