InChI=1/C21H19N3O6S/c25-19(23-15-7-8-18-14(12-15)6-9-20(26)30-18)13-17-21(27)22-10-11-24(17)31(28,29)16-4-2-1-3-5-16/h1-9,12,17H,10-11,13H2,(H,22,27)(H,23,25)/t17-/m0/s1/f/h22-23H 19F26A6BF18C5A4B