
Magnesium Sulfate 2.25% (BOD Nutrient), 1 L by Exaxol, catalog number M5012-1, is a 2.25% w/v (22.5 g MgSO4·7H2O/L) aqueous magnesium sulfate solution, supplied ready to use. Available in 1 L from MBP, a registered vendor to many research institutes across the USA.