InChI=1S/C17H17NO8S/c19-12-4-1-10(2-5-12)7-8-18-17(21)16-15(25-16)11-3-6-13(20)14(9-11)26-27(22,23)24/h1-6,9,15-16,19-20H,7-8H2,(H,18,21)(H,22,23,24)