InChI=1S/C16H16N4O.2C2H6O4S/c17-15(18)12-5-2-10(3-6-12)1-4-11-7-8-13(16(19)20)9-14(11)21;2*3-1-2-7(4,5)6/h1-9,21H,(H3,17,18)(H3,19,20);2*3H,1-2H2,(H,4,5,6)/b4-1+;;