For how many days can we store N-Acetyl-D-lactosamine water solution without affecting it's efficacy?

17 February 2020 1 6K Report

We have N-Acetyl-D-lactosamine 25mg powder from Sigma Aldrich. The required dose is 5mg/Kg or 0.1mg for 20g mouse. The dose is so minute that it is nearly impossible to make fresh doses everyday by dissolving 0.1mg N-Acetyl-D-lactosamine in water. So if we make stock solution of 25mg N-Acetyl-D-lactosamine in water and keep aliquotes at -20°C, how long can it be stored without affecting it's stability?

Qamar Abbas

its better to prepare fresh every time, bcz N-acetyl-D-lactosamine these aqueous conditions lead to high amounts of self-condensation

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