6-bromo-5,5-dichlorospiro[2.3]hexan-4-one InChI=1/C6H5BrCl2O/c7-3-5(1-2-5)4(10)6(3,8)9/h3H,1-2H spiro[2.3]hexan-4-one, 6-bromo-5,5-dichloro-