Lypressin (vasopressin, 8-L-lysine-) can described by weight or functional activity.
number of amino acids: 9
molecular weight 1,056.22 g
1 mg = 0.947 mmol
1 mmol = 1.056 mg
1 USP = 1 International Unit (IU) = 3.7 µg = 0.0037 mg = 0.0035 mmol
1 mg lypressin = 270.27 IU.
1 mmol lypressin = 285.7 IU
