The Benzene,1,2-dichloro-4-ethenyl-, with the CAS registry number 2039-83-0, is also known as 3,4-Dichlorostyrene. It belongs to the product categories of Styrenes; Monomer. Its EINECS number is 218-023-1. This chemical's molecular formula is C₈H₆Cl₂ and molecular weight is 173.04. What's more, its systematic name is 1,2-dichloro-4-ethenylbenzene.

Physical properties of Benzene,1,2-dichloro-4-ethenyl- are: (1)ACD/LogP: 3.70; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.7; (4)ACD/LogD (pH 7.4): 3.7; (5)ACD/BCF (pH 5.5): 384.9; (6)ACD/BCF (pH 7.4): 384.9; (7)ACD/KOC (pH 5.5): 2467.13; (8)ACD/KOC (pH 7.4): 2467.13; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 0 Å²; (13)Index of Refraction: 1.589; (14)Molar Refractivity: 46.96 cm³; (15)Molar Volume: 139.2 cm³; (16)Polarizability: 18.61×10^-24cm³; (17)Surface Tension: 37.1 dyne/cm; (18)Density: 1.242 g/cm³; (19)Flash Point: 101.7 °C; (20)Enthalpy of Vaporization: 45.65 kJ/mol; (21)Boiling Point: 238.9 °C at 760 mmHg; (22)Vapour Pressure: 0.0638 mmHg at 25°C.

Preparation: this chemical can be prepared by 1-(3,4-dichloro-phenyl)-ethanol. This reaction will need reagent TsOH and solvent benzene with the reaction time of 4 hours. The yield is about 68%.

You can still convert the following datas into molecular structure:
(1)SMILES: Clc1ccc(\C=C)cc1Cl
(2)Std. InChI: InChI=1S/C8H6Cl2/c1-2-6-3-4-7(9)8(10)5-6/h2-5H,1H2
(3)Std. InChIKey: BJQFWAQRPATHTR-UHFFFAOYSA-N