InChI=1S/C11H21N3O4S3/c1-21(18)5-3-2-4-13-11(19)20-7-8(12)10(17)14-6-9(15)16/h8H,2-7,12H2,1H3,(H,13,19)(H,14,17)(H,15,16)/t8-,21+/m0/s1