2H-pyrano[3,2-c]pyridine, 5,7,8-trichloro-3,4-dihydro- 5,7,8-trichloro-3,4-dihydro-2H-pyrano[3,2-c]pyridine InChI=1/C8H6Cl3NO/c9-5-6-4(2-1-3-13-6)7(10)12-8(5)11/h1-3H