(E)-1-Chlorobut-2-ene
Synonym(s):1-Chloro-2-butene
- CAS NO.：4894-61-5
- Empirical Formula: C4H7Cl
- Molecular Weight: 90.55
- MDL number: MFCD00000987
- EINECS: 225-516-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-10 10:27:11
What is (E)-1-Chlorobut-2-ene?
The Uses of (E)-1-Chlorobut-2-ene
Crotyl Chloride is a useful intermediate used in the preparation of crotyltrichlorosilanes and in other crotylsilylation related reactions
The Uses of (E)-1-Chlorobut-2-ene
Crotyl chloride was used in kinetics measurements of reactions of atomic chlorine with series of unsaturated aldehydes and ketones at 298K. (E)Crotyl chloride was also used in the preparation of (E)-crotyltrichlorosilane.
General Description
Crotyl chloride reacts with trichlorosilane in the presence of tertiary amine and copper salt to give the corresponding allyltrichlorosilane.
Properties of (E)-1-Chlorobut-2-ene
| Melting point: | -65 °C |
| Boiling point: | 85-86 °C(lit.) |
| Density | 0.923 g/mL at 20 °C(lit.) |
| refractive index | n |
| Flash point: | -15 °C |
| storage temp. | 2-8°C |
| form | Liquid |
| color | Clear colorless |
| CAS DataBase Reference | 4894-61-5(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Butene, 1-chloro-, (2E)- (4894-61-5) |
Safety information for (E)-1-Chlorobut-2-ene
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H225:Flammable liquids H314:Skin corrosion/irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. 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 (E)-1-Chlorobut-2-ene
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