Bench Reference
Reconstitution Solver
Set vial mass, diluent volume, syringe scale, and target draw. The panel returns solution concentration, the draw in syringe units, and how many draws a vial yields. Math only — nothing is stored.
2 units
of 30 unit syringe
Draw Ladder
Syringe Scale
The syringe you will draw with, by total volume.
Vial Mass
Peptide mass in the vial, in milligrams.
Diluent Volume
Bacteriostatic water added to the vial, in millilitres.
Target Draw
Peptide per single draw, in micrograms.
Syringe
2 units
of 30 unit syringe
Concentration
5mg/mL
Draw Volume
0.02mL
Draws per Vial
50draws
Draw Ladder
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Field Definitions
What Each Term Means
Lyophilized Vial
The freeze-dried powder as it ships — sealed and dry until diluent is added.
Bacteriostatic Water
Sterile water with 0.9% benzyl alcohol, the usual diluent for reconstitution.
Reconstitution
Adding diluent to the dry powder to bring the contents into solution.
Concentration (mg/mL)
Peptide mass present in every millilitre once the vial is in solution.
Microgram (mcg)
One thousandth of a milligram. The scale most target draws are read at.
Syringe Units
Insulin-syringe graduations: 100 units span 1 mL, so one unit is 0.01 mL.
The Arithmetic
How the Numbers Resolve
Solution Concentration
Concentration (mg/mL) = vial mass (mg) ÷ diluent volume (mL). Put 10 mg into 2 mL of bacteriostatic water and the solution sits at 5 mg/mL.
Draw in Syringe Units
Every insulin syringe reads 0.01 mL per unit, whatever its total volume — 100 units on a 1 mL, 50 on a 0.5 mL, 30 on a 0.3 mL. Divide the target draw by the concentration to get a volume, then scale to units.
Draws per Vial
Draws per vial = total content (mcg) ÷ target draw (mcg). That is how many equal pulls one vial holds at the figure you set.