Standard HEPES-PSS Solution

Compound	M.W.	mM	g/L
NaCl	58.44	141.9	8.29
KCl	74.55	4.7	0.35
MgSO₄	246.28	1.7	0.42
EDTA	292.25	0.5	0.15
CaCl₂	147.02	2.8	0.41
HEPES	238.3	10	2.38
KH₂PO₄	136.09	1.2	0.16
Glucose	180.16	5	0.9

Used in general purpose applications; does not require aeration with oxygen/carbon dioxide.