The 3,5,6-Trichloropicolinic acid is an organic compound with the formula C₆H₂Cl₃NO₂. The systematic name of this chemical is 3,5,6-trichloropyridine-2-carboxylic acid. With the CAS registry number 40360-44-9, it is also named as 2-pyridinecarboxylic acid, 3,5,6-trichloro-.

Physical properties about 3,5,6-Trichloropicolinic acid are: (1)ACD/LogP: 2.20; (2)ACD/BCF (pH 5.5): 1; (3)ACD/BCF (pH 7.4): 1; (4)ACD/KOC (pH 5.5): 1; (5)ACD/KOC (pH 7.4): 1; (6)#H bond acceptors: 3; (7)#H bond donors: 1; (8)#Freely Rotating Bonds: 1; (9)Polar Surface Area: 39.19 Å²; (10)Index of Refraction: 1.618; (11)Molar Refractivity: 45.95 cm³; (12)Molar Volume: 131 cm³; (13)Polarizability: 18.21×10^-24cm³; (14)Surface Tension: 64.3 dyne/cm; (15)Density: 1.728 g/cm³; (16)Flash Point: 161 °C; (17)Enthalpy of Vaporization: 61.88 kJ/mol; (18)Boiling Point: 342.6 °C at 760 mmHg; (19)Vapour Pressure: 2.87E-05 mmHg at 25°C.

Preparation of 3,5,6-Trichloropicolinic acid: this chemical can be prepared by carbon dioxide and 2,3,5-trichloro-6-iodo-pyridine. This reaction will need reagent isopropylmagnesium chloride and solvent tetrahydrofuran. The reaction time is 45 min with reaction temperature of -75 °C. The yield is about 76%.

You can still convert the following datas into molecular structure:
(1)SMILES: Clc1c(nc(Cl)c(Cl)c1)C(=O)O
(2)InChI: InChI=1/C6H2Cl3NO2/c7-2-1-3(8)5(9)10-4(2)6(11)12/h1H,(H,11,12)
(3)InChIKey: TVMKSGXYTVKNRK-UHFFFAOYAM
(4)Std. InChI: InChI=1S/C6H2Cl3NO2/c7-2-1-3(8)5(9)10-4(2)6(11)12/h1H,(H,11,12)
(5)Std. InChIKey: TVMKSGXYTVKNRK-UHFFFAOYSA-N