HEPES-buffered saline (5X, pH 7.4), low endotoxin - FAQs

What are the concentrations of the components of the HEPES-buffered saline (5X, pH 7.4), low endotoxin?

The HEPES-buffered saline (5X, pH 7.4), low endotoxin contains 125 mM HEPES and 750 mM Sodium Chloride, prepared in 18.2 megohm-cm±1 low endotoxin water and filtered through a 0.22-micron filter.