C5H10N2O3
Koetzle, T. F.Frey, M. N.Lehmann, M. S.Hamilton, W. C.
Acta Crystallographica Section B (1973) 29, 11 2571-2575
a=16.02(1)Å b=7.762(6)Å c=5.119(4)Å
α=90° β=90° γ=90°