3,4-Dimethyl-N-(2,4,5-trimeth-oxy-benzyl-idene)-1,2-isoxazol-5-amine

2,4,5-Trimeth-oxy-benzaldehyde monohydrate

In the title compound, C₁₀H₁₂O₄·H₂O, the 2,4,5-trimeth­oxy­benzaldehyde mol­ecule is almost planar (rms deviation = 0.0183 Å). There is an R₁²(5) ring motif due to O—H⋯O hydrogen bonding. In the crystal, the mol­ecules are stabilized in the form of one-dimensional polymeric chains extending along [010] due to O—H⋯O hydrogen bonding with adjacent water mol­ecules. The H atoms involved in inter­molecular hydrogen bonding are disordered over two sets of sites of equal occupancy.

3,4-Dimethyl-N-[(E)-3-nitrobenzylidene]-1,2-oxazol-5-amine

In the title compound, C₁₂H₁₁N₃O₃, the dihedral angle between the 3-nitro­benzaldehyde and 5-amino-3,4-dimethyl-1,2-oxazole moieties is 2.46 (12)°. The mol­ecule is close to planar, the r.m.s. deviation for the non-H atoms being 0.028 Å. The packing only features van der Waals inter­actions between the mol­ecules.