Q: stability of Vitamin K in aqueous solution?

[EMAIL ROBOT]

I was wondering if anybody knew if vitamin K is stable/unstable in 
aqueous solution.  I have a solution of vitamin K in serum-free DMEM that 
has been sitting at 4C for about 3 months.  Should I prepare the K + DMEM 
fresh?


Frank Wilkinson
fwilkins at thunder.ocis.temple.edu
Department of Biochemistry,
Sol Sherry Thrombosis Research Center
Temple University, Philadelphia