009901: InChI=1.12Beta/C18H18O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h1H3,2-5H,6-9H2,10H,16H,19H/t16-,18-/m0/s1