InChI=1S/C16H17NO12/c18-4-1-2-6-5(3-4)16(27,15(26)17-6)11(22)13(25)29-14-9(21)7(19)8(20)10(28-14)12(23)24/h1-3,7-11,14,18-22,27H,(H,17,26)(H,23,24)