InChI=1/C16H21ClN4/c17-12-6-7-13-14(11-12)20-15-5-4-10-21(15)16(13)19-9-3-1-2-8-18/h6-7,11H,1-5,8-10,18H2/p+2/fC16H23ClN4/h18-19H/q+2 8D1D858CE83A2DF8