DEFINITION

Choline C 11 Injection is a sterile aqueous solution of choline chloride (C₄¹¹CH₁₄NOCl). It contains NLT 90% and NMT 110% of the labeled amount of [¹¹C] choline chloride expressed in MBq (or mCi)/mL at the time indicated in the labeling. It may contain buffering agents, preservatives, stabilizing agents, or sodium chloride. It may contain choline chloride carrier.