I would suggest sticking it in the freezer (mild chill so it won't freeze to ice), or in the fridge. Keep it in a sealed, tight container like a tupperware and then wrap it in more plastic. The sooner you use that urine, the better the results of your urine or the other person's urine. Source(s):
Regulus (also known as Alpha Leonis) is a trinary star system at coordinates 3.99S 2.81E in Federation space, known as the Regulan system. Regulus is visible from Earth in the constellation of Leo. The system's three stars include Ra and UFC-113, and are the location of at least thirteen planets.
He identified a need for office space that was maintained, staffed, and available for companies to use on a flexible basis and went on to found his first business centre under the name Regus in Brussels. In 1994 Regus entered Latin America with a center in SÃ£o Paulo and Asia with its first center in Beijing.