InChI=1/C13H18N2O4S/c1-10-4-2-3-5-13(10)14-20(18,19)12-8-6-11(7-9-12)15(16)17/h6-10,13-14H,2-5H2,1H3/t10-,13+/m1/s1 BEEFA11DFC539D5F