InChI=1S/C31H35N3O12/c1-5-15-12(2)19(33-29(15)42)10-18-13(3)16(20(32-18)11-21-17(6-8-22(35)36)14(4)28(41)34-21)7-9-23(37)45-31-26(40)24(38)25(39)27(46-31)30(43)44/h5,10-11,24-27,31-32,38-40H,1,6-9H2,2-4H3,(H,33,42)(H,34,41)(H,35,36)(H,43,44)/b19-10+,21-11-