Dabigatran etexilate tetra-hydrate.

In the title compound, C34H41N7O5·4H2O (systematic name: ethyl 3-{[2-({4-[(Z)-amino-(hexyl-oxycarbonyl-imino)-meth-yl]anilino}meth-yl)-1-meth-yl-benzimidazole-5-carbon-yl]pyridin-2-yl-amino}-propano-ate tetra-hydrate), the benzene and pyridine rings form dihedral angles of 5.4†(1) and 43.8†(1)°, respectively, with the benzimidazole mean plane. The terminal butyl group is disordered over two conformations in a 0.756†(10):0.244†(10) ratio. There is an intramolecular N-H⋯O hydrogen bond present. In the crystal, the water mol-ecules are involved in the formation of O-H⋯O, O-H⋯N and N-H⋯O hydrogen bonds, which link the components into layers parallel to the ab plane.