(2-Acryloylamino­phen­yl)arsonic acid

The geometrical paramaters for the title compound, C₉H₁₀AsNO₄ or [As(C₉H₈NO)O(OH)₂], are normal. The dihedral angle between the benzene ring and the acrylamide group is 12.2 (2)°. A network of hydrogen bonds leads to a chain structure.

4-(Hexyl­amino)phenol

The title compound, C₁₂H₁₉NO, presents a two-dimensional hydrogen-bonding pattern, where amine and hydroxyl functionalities serve as both donors and acceptors.

4-(Hex­yloxy)aniline

The title mol­ecule, C₁₂H₁₉NO, crystallizes with a head-to-head tail-to-tail arrangement, including very weak N—H...N and N—H...O hydrogen bonds.