[Neuroscience] Does TTX degrade?

Melinda T. Owens via neur-sci%40net.bio.net (by owens888 from phy.ucsf.edu)
Tue Jul 31 22:51:10 EST 2007

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I would like to begin a research project with TTX, but the supply my
lab has is from 1994.  (It's been dissolved in saline, aliquoted, and
continually kept frozen at -20.)  My professor is really cheap, so I
don't want to buy more if I don't have to.  Does TTX degrade over
time?  How long can I keep it before I should be worried about its
losing efficacy?

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