InChI=1/C18H14N4O2S/c23-17(11-25-18-21-15-7-3-4-8-16(15)24-18)22-20-10-12-9-19-14-6-2-1-5-13(12)14/h1-10,20H,11H2,(H,22,23)/b12-10+/f/h22H B1D5E3F10BDB6D95