(1R,8S)-9-oxabicyclo[6.1.0]nonane 9-oxabicyclo[6.1.0]nonane, (1R,8S)- InChI=1/C8H14O/c1-2-4-6-8-7(9-8)5-3-1/h7-8H,1-6H2/t7-,8