The 4-Chlorostyrene, with the CAS registry number 1073-67-2 and EINECS registry number 214-028-8, has the systematic name and IUPAC name of 1-chloro-4-ethenylbenzene. It is a kind of clear colourless to slightly yellow liquid, and belongs to the following product categories: Styrenes; Monomers; Polymer Science; Styrene and Functionalized Styrene Monomers. And the molecular formula of the chemical is C₈H₇Cl. What's more, it should be stored in the refrigerator.

The physical properties of 4-Chlorostyrene are as followings: (1)ACD/LogP: 3.60; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.604; (4)ACD/LogD (pH 7.4): 3.604; (5)ACD/BCF (pH 5.5): 322.838; (6)ACD/BCF (pH 7.4): 322.838; (7)ACD/KOC (pH 5.5): 2175.386; (8)ACD/KOC (pH 7.4): 2175.386; (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: 1.575; (14)Molar Refractivity: 42.072 cm³; (15)Molar Volume: 127.332 cm³; (16)Polarizability: 16.679×10^-24cm³; (17)Surface Tension: 34.282 dyne/cm; (18)Density: 1.088 g/cm³; (19)Flash Point: 61.196 °C; (20)Enthalpy of Vaporization: 41.133 kJ/mol; (21)Boiling Point: 192.688 °C at 760 mmHg; (22)Vapour Pressure: 0.673 mmHg at 25°C.

Uses of 4-Chlorostyrene: It can react with morpholine to produce 4-[(4-chloro-phenyl)-thioacetyl]-morpholine. This reaction will need reagent S. The reaction time is 10 minutes, and the yield is about 68%.

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin. Therefore, you had better take the following instructions: Wear suitable gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice. 

You can still convert the following datas into molecular structure:
(1)SMILES: C=Cc1ccc(cc1)Cl
(2)InChI: InChI=1/C8H7Cl/c1-2-7-3-5-8(9)6-4-7/h2-6H,1H2
(3)InChIKey: KTZVZZJJVJQZHV-UHFFFAOYAL