2X SDS-PAGE Sample Buffer

This product was aseptically filtered through a Millipore 0.22 micron filter into clean, pre-sterilized containers. The product was tested on trypticase soy agar for 24 hours, 48 hours and 72 hours and was found to be negative for bacteria.

This product is a concentrated stock solution and should be diluted appropriately with distilled, deionized water or equivalent to its final working concentration. 2X SDS-PAGE Sample Buffer consists of 0.125 M Tris-HCl, 4% (w/v) SDS, 20% (v/v) Glycerol and 0.01% (w/v) bromophenol blue. The pH of this solution is 6.8. Meticulously prepared using ultra pure reagents dissolved in highly polished pharmaceutical grade deionized water.