The Pyridazine,4,6-dichloro-3-phenyl-, with the CAS registry number 40020-05-1, is also known as 3,5-Dichloro-6-phenylpyridazine. This chemical's molecular formula is C₁₀H₆Cl₂N₂ and molecular weight is 225.07. What's more, its IUPAC name is 4,6-dichloro-3-phenylpyridazine. When you are using this chemical, please be cautious about it. It may cause inflammation to the skin or other mucous membranes. 

Physical properties of Pyridazine,4,6-dichloro-3-phenyl- are: (1)ACD/LogP: 2.32; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.32; (4)ACD/LogD (pH 7.4): 2.32; (5)ACD/BCF (pH 5.5): 34.32; (6)ACD/BCF (pH 7.4): 34.32; (7)ACD/KOC (pH 5.5): 437.3; (8)ACD/KOC (pH 7.4): 437.3; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 25.78 Å²; (13)Index of Refraction: 1.604; (14)Molar Refractivity: 56.81 cm³; (15)Molar Volume: 165 cm³; (16)Polarizability: 22.52×10^-24cm³; (17)Surface Tension: 50.7 dyne/cm; (18)Density: 1.363 g/cm³; (19)Flash Point: 216.4 °C; (20)Enthalpy of Vaporization: 60.5 kJ/mol; (21)Boiling Point: 381.4 °C at 760 mmHg; (22)Vapour Pressure: 1.12E-05 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: Clc2nnc(c1ccccc1)c(Cl)c2
(2)Std. InChI: InChI=1S/C10H6Cl2N2/c11-8-6-9(12)13-14-10(8)7-4-2-1-3-5-7/h1-6H
(3)Std. InChIKey: PPYSGGOWIZSMJL-UHFFFAOYSA-N