Crystal Structure of Theophylline

Id2232996
Common nametheophylline
Chemical name1,3-dimethyl-7<i>H</i>-purine-2,6-dione
a (Å)7.8935(6)
b (Å)12.9087(7)
c (Å)15.9055(8)
α (°)90.00
β (°)104.214(5)
γ (°)90.00
V (Å3)1571.07(17)
Space groupP 1 21/c 1
Temperature (K)299
Rint0.048
Publication: Acta Crystallographica Section E (2011) 67, 12 o3357