InChI=1/C18H26N4O2S/c1-18(2,3)16(24)19-14-10-6-7-12(11-14)15(23)21-22-17(25)20-13-8-4-5-9-13/h6-7,10-11,13H,4-5,8-9H2,1-3H3,(H,19,24)(H,21,23)(H2,20,22,25)/f/h19-22H E191BB4FAF075EC5