InChI=1/C8H8Cl2O/c9-6-4-1-2-5(3-4)7(10)8(6)11/h1-2,4-7H,3H2/t4-,5+,6-,7 bicyclo[3.2.1]oct-6-en-3-one, 2,4-dichloro-, (1R,2S,4R,5S)- rel-(1R,2S,4R,5S)-2,4-dichlorobicyclo[3.2.1]oct-6-en-3-one