Tom Knight via (by tk from
Tue Jun 10 14:36:37 EST 2008

Wen Huang <huang_wen from> writes:
> I was wondering what kind of ampicillin should I use to make LB-amp+
> media and LB-agar plates
> 2. ampicillin sodium salt

This one.  If you dissolve it in 50% ethanol it will remain liquid at
-20, which makes adding the solution to media and agar easier.

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