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Concentrated MSA is 1.481 g/mole
MW = 98.11 g/mole
4.5 mL of concentrated MSA to total volume 2 L gives ~ 35 mM
4.5 mL Conc MSA x 1.481 g/mL / 96.11 g/mole x 1000 mM/mole / 2L = 35 mM
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