InChI=1S/C9H10N2O6.2H2O.O.V/c12-3-4-6(14)7(15)8(17-4)11-2-1-5(13)10-9(11)16;;;;/h1-2,4,6-8,12H,3H2,(H,10,13,16);2*1H2;;/q-2;;;;+4/p-2/t4-,6+,7-,8+;;;;/m0..../s1