What is sodium azide used for?
Sodium azide is a preservative. It prevents bacteria from growing in the serum. Please notify us if you are planning to use the serum directly in cell culture; for cell culture usage, sodium azide should not be added to the serum. If you already have sodium azide in the serum, it can be easily removed by dialysis. Alternatively, Proclin300 can be used in place of sodium azide.