InChI=1/C18H22O2/c1-11(2)9-18-7-6-16(20)12(3)17(18)15-5-4-14(19)8-13(15)10-18/h4-5,8,11,19H,6-7,9-10H2,1-3H3/t18-/m0/s1 666F37E8F5DEA64E