Provide at least the following information:
Solubility in water, other solvents such as ether, ethanol, acetone, and buffers of different pH;
Isomeric nature including stereochemical configuration;
Partition coefficient and the existence of polymorphs;
Copies of infrared, nuclear magnetic resonance (proton and C-13), ultraviolet and mass spectra;
Information on the chemical and physicochemical stability if relevant (e.g. formation of a hydrate, change of polymorphic form.