IPTG – 1 M (100 x) Stock Solution
Weigh 2.383 g of IPTG. 
Add 10 ml sterile H2O.
Dissolve completely.
Prewet a 0.2 µm syringe filter by drawing through 5-10 ml of sterile H2O and discard water.
Sterilize Ampicillin Stock through the prepared 0.2 µm syringe filter.
Store in 1 ml aliquots at -20°C for up to 1 year.
