InChI=1S/C16H22O3/c1-10(15(18)19-4)12-5-7-16(3)8-6-14(17)11(2)13(16)9-12/h6,8,12-14,17H,1-2,5,7,9H2,3-4H3/t12-,13+,14+,16+/m1/s1