Vial, water, dose — see exactly where to draw on a U-100 insulin syringe. Recalculates as you type.
Lyophilized (freeze-dried) peptides arrive as a solid cake and must be returned to solution before laboratory use. Adding bacteriostatic water to the vial dissolves the peptide at a known concentration, so a precise amount can be drawn with an insulin syringe. The concentration — and therefore where to draw to — depends entirely on how much water is added: the calculator above does that arithmetic for you.
Work on a clean, stable surface. Wipe vial stoppers with an alcohol prep pad and let them dry before any needle touches them.
Draw the chosen volume of bacteriostatic water and introduce it against the inside wall of the vial at an angle — never jet it directly onto the peptide cake. Swirl gently; do not shake.
Reconstituted vials are typically stored refrigerated at 2–8°C and used within the window appropriate to the specific compound. Unreconstituted vials store longer when kept cold and away from light.
This tool is provided for laboratory research planning only. All PepTek products are for laboratory research use only and are not for human consumption. Nothing on this page is medical advice.