InChI=1/C18H22N2/c1-19-13-6-14-20-17-9-4-2-7-15(17)11-12-16-8-3-5-10-18(16)20/h2-5,7-10,19H,6,11-14H2,1H3/p+1/fC18H23N2/h19H/q+1 BE3CB12A789B279C