The compound 9[1-(2-hydroxy ethoxy)-3-hydroxy propyl] guanine crystalizes i
n the tetragonal system, space group P4(1)2(1)2 with a = 11.106 (1), c = 20
.558 (2) Angstrom, and Z = 8. The acyclic chain C1'- O1'- C4' - C5' -O5' is
in the extended configuration and the glycosidic torsion angle (C4-N9-C1'-
O1') is 125.1 (8)degrees. The molecules are held together by Van der Waal's
forces.