InChI=1/C18H20ClNO2/c1-12-3-5-15(6-4-12)13(2)20-11-14-9-16(19)18-17(10-14)21-7-8-22-18/h3-6,9-10,13,20H,7-8,11H2,1-2H3/p+1/t13-/m1/s1/fC18H21ClNO2/h20H/q+1 4B6A08655016F35C