Premium bacteriostatic water — pharmaceutical-grade, ultra-pure, 0.9% benzyl alcohol. Made for the lab. Built for legends.

Pick Your Pack.
Every vial is 30ml of sterile bacteriostatic water. Buy more, save more. Simple as that.

1 Vial

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10 Vials

1 Vial (Hospira)
Bacteriostatic Water — 30mL Multi-Dose
A sterile, clear laboratory reconstitution solution in a 30mL rubber-stopper vial. Preserved with 0.9% benzyl alcohol and designed for repeated access with proper aseptic technique.
- 30 mL multi-dose sterile solution
- 0.9% benzyl alcohol preservative
- Independently tested for endotoxins, sterility, and benzyl alcohol level
- For research use only
Store at controlled room temperature (20°C to 25°C). Protect from excessive heat, strong light, and freezing to maintain stability and effectiveness.
Each production lot is tested. The current lot’s COA is available in our online library for easy lookup by lot number, confirming endotoxins, pH, sterility, and benzyl alcohol concentration.
Why Big Bac
Pure water. Nothing weird.
Just clean, high-quality water in a sealed vial. No mystery ingredients, no fine print.
Multi-dose ready.
Preserved with 0.9% benzyl alcohol so you can draw from the same vial for up to 28 days.
Lab-tested.
Every batch verified for pH, sterility, and endotoxin levels. Scan the QR code on any vial — or browse right here on the site — to pull up its COA anytime.
Fast, easy delivery.
Order today, get it in a couple days. Simple packaging, tracked shipping, free over $100.
Questions? We got you.
What is bacteriostatic water?
Sterile water preserved with 0.9% benzyl alcohol, which inhibits bacterial growth and allows repeated withdrawals from the same vial.
How should I store it?
Room temperature, out of direct sunlight. Once opened, use within 28 days.
Is this for human use?
No. All products are labeled and sold for research use only. Not for human or veterinary use.
How fast do you ship?
Orders placed by 3pm ET ship the same business day via tracked 2-day shipping.
Do you offer bulk pricing?
Yes — the 10-pack is our best per-vial rate. For larger orders, get in touch.
All products offered by The Big Bac Shop are strictly intended for research and laboratory use only. These products are not intended for human or veterinary use, diagnosis, treatment, or prevention of any disease. By purchasing, you confirm you are a qualified researcher.