InChI=1S/C15H26O3/c1-13(2)9(17)5-6-14(3)10-8(16)7-15(14,4)12(18)11(10)13/h8-12,16-18H,5-7H2,1-4H3/t8-,9-,10+,11+,12-,14+,15-/m1/s1