Q = What are the amino acids dissolved in?
A = These are dissolved in a mixture of water & isopropanol (Propan-2-ol). Recommended solvent for chromatography is a mixture of water with 10/20% isopropanol (Propan-2-ol) or ethanol.
Q = What is the solubility of this?
A = In alcohol, 0.72. In water @25 C, 24.26 g/l.