InChI=1S/C8H11N5O3/c9-8-11-6-5(7(15)12-8)10-3-13(6)4-16-2-1-14/h3,14H,1-2,4H2,(H3,9,11,12,15) 9-HYROXYETHOXYMETHYLGUANINE NC1=Nc2n(COCCO)cnc2C(=O)N1 NC1=Nc2n(COCCO)cnc2C(=O)N1