This chemical is called 3-Pyridinecarbonitrile, 2,4,5,6-tetrachloro-, and its systematic name is 2,4,5,6-tetrachloropyridine-3-carbonitrile. With the molecular formula of C₆Cl₄N₂, its molecular weight is 241.89. The CAS registry number of this chemical is 17824-82-7.

Other characteristics of the 3-Pyridinecarbonitrile, 2,4,5,6-tetrachloro- can be summarised as followings: (1)ACD/LogP: 2.83; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 2; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 0; (6)Polar Surface Area: 36.68 Å²; (7)Index of Refraction: 1.62; (8)Molar Refractivity: 48.42 cm³; (9)Molar Volume: 137.7 cm³; (10)Polarizability: 19.19×10^-24cm³; (11)Surface Tension: 69.1 dyne/cm; (12)Density: 1.75 g/cm³; (13)Flash Point: 146.6 °C; (14)Enthalpy of Vaporization: 56.03 kJ/mol; (15)Boiling Point: 318.7 °C at 760 mmHg; (16)Vapour Pressure: 0.000354 mmHg at 25°C.

Uses of this chemical: The 3-Pyridinecarbonitrile, 2,4,5,6-tetrachloro- could react with 2-amino-benzenethiol, and obtain the 2,4,5-trichloro-6-(2-mercapto-phenylamino)-nicotinonitrile. This reaction needs the solvent of ethanol. The yield is 65 %. In addition, this reaction should be taken for 2 hours. The other condition is heating.

You can still convert the following datas into molecular structure: 
1.SMILES: Clc1c(C#N)c(Cl)nc(Cl)c1Cl
2.InChI: InChI=1/C6Cl4N2/c7-3-2(1-11)5(9)12-6(10)4(3)8
3.InChIKey: XLORIERFMJHASL-UHFFFAOYAT