InChI=1S/C19H38O2.C18H37O.Zn/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19(20)21;1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19;/h2-18H2,1H3,(H,20,21);2-18H2,1H3;/q;-1;+2/p-1