Research supplies & diluents
Bacteriostatic Water (BAC Water)
Bacteriostatic water is a preserved research diluent used when a laboratory SOP allows more than one draw from a preparation vial. VaultLabs supplies 3 ml and 10 ml vials for in vitro work only.
Research use only. For in vitro research use only. Not for human or animal consumption. Not for human consumption, medical use, or personal application.
Reviewed by VaultLabs Research Editorial Desk · Last updated 2026-06-01
Overview
Bacteriostatic water (BAC water) is sterile water with a preservative — on VaultLabs labels, a 0.9% benzyl alcohol context — so a qualified laboratory can make multiple draws from one vial when its SOP allows that workflow. It is a diluent, not a peptide, and it is not for human or animal use. Choose sterile water instead when the SOP requires a single-use, non-preserved reconstitution. Catalogue SKUs are grouped at BAC water. Match the vial lot to batch verification when a COA is published. Reconstitution math for research inventories is on the BAC water calculator; it is not a dosing tool.
Research interest areas
Peptide reconstitution workflows
Analytical diluent preparation
Multi-use vial research contexts
Storage information
15–25 °C (room temperature, sealed)
Keep sealed vials at labelled room-temperature storage, protected from contamination. Do not use a vial that arrived with a compromised seal.
Stability notes
Opened-vial hold time is defined by the receiving laboratory’s SOP, not by a VaultLabs protocol. Document the open date if your quality system requires it.
Databases and verification
- USP bacteriostatic water research diluent specifications.