Lab tools
Reconstitution calculator
Work out concentration and draw volume for a lyophilized research peptide. Enter the mass stated on the vial, the volume of bacteriostatic water or other diluent you are adding, and the amount you want per measurement.
A standard U-100 insulin syringe is 100 units per ml. Use 50 for a U-50 barrel.
Results
- Concentration
- 5.00 mg/ml
- 5,000 mcg per ml
- Draw volume
- 5.0 units
- 0.050 ml on the barrel
- Measurements per vial
- 40.0
For research use only. This tool is provided for laboratory calculation purposes and is not medical guidance or a dosing recommendation for humans or animals.
How the math works
- 1. Concentration = vial mass ÷ diluent volume. A 10 mg vial with 2 ml of diluent gives 5 mg/ml, or 5,000 mcg/ml.
- 2. Draw volume = target amount ÷ concentration. 250 mcg from 5,000 mcg/ml is 0.05 ml.
- 3. Units = draw volume × syringe scale. 0.05 ml on a U-100 barrel is 5 units.
Add diluent slowly down the vial wall, let the lyophilized powder dissolve without shaking, and store reconstituted material refrigerated and protected from light.