-
Name
(E)-2-Butenoyl chloride
- EINECS 210-889-9
- CAS No. 625-35-4
- Article Data54
- CAS DataBase
- Density 1.081 g/cm3
- Solubility Reacts with water.
- Melting Point 72-74 °C
- Formula C4H5ClO
- Boiling Point 124.5 °C at 760 mmHg
- Molecular Weight 104.536
- Flash Point 35 °C
- Transport Information UN 2920 8/PG 2
- Appearance clear colourless to brown liquid
- Safety 16-26-27-36/37/39-45-28A-24/25
- Risk Codes 10-34-36/37
-
Molecular Structure
-
Hazard Symbols
C
- Synonyms 2-Butenoylchloride, (E)-;Crotonoyl chloride, (E)- (8CI);(2E)-2-Butenoyl chloride;(E)-But-2-enoyl chloride;(E)-Crotonic acid chloride;(E)-Crotonoyl chloride;(E)-Crotonyl chloride;trans-2-Butenoyl chloride;trans-Crotonoyl chloride;
- PSA 17.07000
- LogP 1.32790
(E)-2-Butenoyl chloride Chemical Properties
IUPAC Name: (E)-But-2-enoyl chloride
Molecular Formula: C4H5Cl O
Molecular Weight: 104.53
EINECS: 210-889-9
Density: 0.909 g/cm3
Boiling Point: 84.5 °C at 760 mmHg
Flash Point: 35 ºC
Appearance: colorless liquid
Freely Rotating Bonds: 1
Polar Surface Area: 0 Å2
Index of Refraction: 1.425
Molar Refractivity: 25.48 cm3
Molar Volume: 99.5 cm3
Polarizability: 10.1 ×10-24 cm3
Surface Tension: 22.5 dyne/cm
Enthalpy of Vaporization: 31.14 kJ/mol
Vapour Pressure: 80.6 mmHg at 25°C
The Cas Register Number of 2-Butenoyl chloride,(2E)- is 625-35-4. The chemical synonyms of 2-Butenoyl chloride,(2E)- (CAS NO.625-35-4) are 2-Butenoylchloride, (E)- ; Crotonoyl chloride, (E)- (8CI) ; (2E)-2-Butenoyl chloride ; (E)-But-2-enoyl chloride ; (E)-Crotonic acid chloride ; (E)-Crotonoyl chloride ; (E)-Crotonyl chloride ; trans-2-Butenoyl chloride ; trans-Crotonoyl chloride ; trans-Crotonyl chloride .
The molecular structure of 2-Butenoyl chloride,(2E)- (CAS NO.625-35-4) is.png)
.
(E)-2-Butenoyl chloride Uses
2-Butenoyl chloride,(2E)- (CAS NO.625-35-4) is used as organic reagent and pharmaceutical intermediate.
(E)-2-Butenoyl chloride Safety Profile
Hazard Symbol: 
C
Risk Codes: R10;R34
R10: Flammable.
R34: Causes burns.
Safety Description: S16;S24/25;S28
S16: Keep away from sources of ignition.
S24/25: Avoid contact with skin and eyes.
S28: After contact with skin, wash immediately with plenty of soap-suds.
Transport Information: UN 2920
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