Die Kristallstruktur von 2,4‐Diamino‐5‐(3,4,5‐trimethoxybenzyl)‐pyrimidin‐1‐oxid‐dihydrat. (Ein Metabolit von Trimethoprim)

The crystal structure of the title compound has been determined by threedimensional X‐ray diffraction methods. The crystals belong to the space group P1 with cell constants Text a = 7.851 Å b = 10.703 Å c = 10.399 Å α = 100.06° β = 97.38° γ = 75.77° The structure has been refined to an R‐value of 4.0%. The geometry of the molecule and the hydrogen bonding in the crystal are discussed.