High-Volume Ancillaries
Bacteriostatic water is sterile water preserved with 0.9% benzyl alcohol, which inhibits bacterial growth and allows a vial to be entered multiple times. It is the standard solvent for reconstituting lyophilized research peptides.
The benzyl alcohol preservative is what separates bacteriostatic water from plain sterile water. Sterile water is single-use only; bacteriostatic water supports multiple withdrawals across a standard 28-day in-use window.
10mL vials suit single-compound protocols; 30mL vials are the efficient choice when reconstituting several peptides across a research program.
Enter your vial strength and the volume of BAC water you plan to add — the calculator returns concentration per mL and the exact unit mark on a U-100 insulin syringe.
Convert vial strength and bacteriostatic water volume into exact insulin-syringe unit marks.
Peptide reconstitution calculator
Concentration
5 mg/mL
Draw volume
0.05 mL
Insulin syringe
5 units (IU)
U-100 insulin syringe (100 units = 1 mL)
10 mg + 2 mL = 5 mg/mL. A 250 mcg dose = 5 units on a U-100 syringe (40 doses per vial).
For laboratory and research use only. Not for human or veterinary use.
Need solvent? Buy bacteriostatic water (10mL / 30mL)
It is the solvent used to reconstitute lyophilized peptides. The 0.9% benzyl alcohol preservative allows the vial to be entered multiple times.
Once punctured, bacteriostatic water is conventionally used within 28 days when stored correctly.
Sterile water contains no preservative and is single-use. For multi-entry reconstitution, bacteriostatic water is the correct solvent.
