CTB expiry

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sencajal
sencajal's picture
CTB expiry

 I am using a cholera toxin for tracing study. I got it from some other lab..they bought at 2001..Anybody knows about the expiry date about the cholera toxin tracer..Thanks in advance

Arvind Singh Pundir
Arvind Singh Pundir's picture
Hi Sencajal,

Hi Sencajal,
           CTB tracer as mentioned by you is from which company they may have mentioned its shelf life on its spec sheet, is it conjugated to some flurochrome if yes then may be this much long time gap may have quenched it,or else you write to the company and they will surely respond to it about its expiry.

sencajal
sencajal's picture
Thanks ..mine is not

Thanks ..mine is not conjugated 2 flurochrome..