Stability of IPTG?

[Christian Praetorius]

"WS" <novalidaddress at nurfuerspam.de> wrote:

>I wonder how stable IPTG is in aqueous solutions. It seems to dissolve
>very well to give a 1M stock, but does it make sense to do it that way,
>i.e how long is IPTG stable in water? At room temp?

Why do you want to keep it at room temperature? We usually made a
larger batch in water (eg 10ml), made 1ml aliquots and stored them at
-20. We never observed any problems.

Christian

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