TBST with Sodium Azide 20X with 2% Tween 20, pH 7.4

500 mM Tris-HCl, 2.75 M NaCl and 54 mM KCl, 2% Tween-20 and 0.02% Sodium Azide, pH 7.4 � 0.2. Prepared in DI water. Shipped at room temperature, store at RT.