InChI=1S/C19H18ClNO9/c20-9-5-3-7-11(12(9)16(25)26)21-10-6-2-1-4-8(10)17(27)29-19-15(24)13(22)14(23)18(28)30-19/h1-7,13-15,18-19,21-24,28H,(H,25,26)