InChI=1S/C22H19ClO6S/c1-27-18-9-3-15(4-10-18)21(16-5-11-19(28-2)12-6-16)22(23)17-7-13-20(14-8-17)29-30(24,25)26/h3-14H,1-2H3,(H,24,25,26)