InChI=1S/C16H25N3O9S/c1-2-3-10(13(23)16(27)28)29-7-9(14(24)18-6-12(21)22)19-11(20)5-4-8(17)15(25)26/h2-3,8-10,13,23H,4-7,17H2,1H3,(H,18,24)(H,19,20)(H,21,22)(H,25,26)(H,27,28)/b3-2+