InChI=1S/C21H30O/c1-14(2)16-12-15-8-9-19-20(3,4)10-7-11-21(19,5)17(15)13-18(16)22-6/h8-9,12-14,19H,7,10-11H2,1-6H3/t19-,21-/m1/s1