Store the solution in the refrigerator until you are ready to use it. Do not freeze. When ready to use, add the contents of the tube with the clear cap (saline solution) to the tube with the green cap (TRX solution) and put the lid back on. Mix by inverting and straightening the tube several times. Make sure the solution is mixed thoroughly, but gently. Vigorous mixing will decrease the activity of the TRX.
sh-Polypeptide-2 suspended in ammonium sulphate/water solution.