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Ampicillin: Difference between revisions
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Ampicillin available from Sigma A-9518 (Ampicillin sodium salt), FW 371.39. To make 100ml of 100 mg/ml stock solution, dissolve 10 g of ampicillin in 50 ml of water and 50 ml of 100% ethanol. | Ampicillin available from Sigma A-9518 (Ampicillin sodium salt), FW 371.39. To make 100ml of 100 mg/ml stock solution, dissolve 10 g of ampicillin in 50 ml of water and 50 ml of 100% ethanol. | ||
==Stability== | |||
Culture plates with ampicillin can be stored at 2-8 °C for up to two weeks. Stock solutions may be stored at 2-8 °C for up to 3 weeks. For long term storage (4-6 months), stock solutions should be stored at -20 °C. At 37 ° C in culture, ampicillin is stable up to 3 days. [http://www.sigmaaldrich.com/sigma/product%20information%20sheet/a0166pis.pdf Sigma reference] | |||
==Plate color code== | ==Plate color code== | ||
