Laboratory research supplier · Lab-tested every lot
Research-Grade Bacteriostatic Water. Verified by Lot.
BacterioWater specializes in independently tested bacteriostatic water and laboratory solutions for research and analytical applications.
- 30 mL vial · 0.9% benzyl alcohol
- Certificate of Analysis published for every lot
- Ships same day — order by 2 PM ET, Mon–Fri
$12.49 a single vial — down to $5.49 a vial on the 200-pack.
For laboratory research use only. Not for human or veterinary use.
COA Available
Lot EB61901 · reported Sep 4, 2026
Why laboratories choose BacterioWater
Buy More. Save More. As low as $5.49 a vial.
Bac water vial packs
Packs of 1 to 200 vials of our core catalog item. The per-vial cost steps down as the pack grows, and every pack ships the same research-grade 30 mL bacteriostatic water vial.
Lab supplies
Lab supplies for the bench
Nitrile gloves, 200 µL pipette tips, 1.5 mL microcentrifuge tubes and 70% isopropyl alcohol prep pads for routine laboratory work. Add them to the same order as your vials and everything ships together, tracked, from the US.
Nitrile Gloves
$15.99Latex-free disposable gloves for routine handling, preparation and general laboratory tasks.
Pipette Tips · 200 µL
$10.99200 µL disposable tips for routine liquid handling and sample preparation.
Snap-cap 1.5 mL tubes for sample handling, organisation and everyday research workflows.
Individually wrapped 70% isopropyl alcohol pads for laboratory cleaning and preparation.
For laboratory research use only. Not for human or veterinary use.
Currently shipping
EB61901
Latest COA reported Sep 4, 2026
- Sterility
- Endotoxins
- pH
- Benzyl alcohol level
30 mL vial · currently shipping lot EB61901
The product
What is bacteriostatic water (bac water)?
Sterile water preserved with 0.9% benzyl alcohol, supplied as a diluent and reconstitution solvent for laboratory research and analytical applications.
“Bac water” is the common short name for the same product. Our core catalog item is one formulation in one size: a 30 mL vial with a rubber stopper built for repeated access. It is filled in controlled, numbered lots and tested by an independent laboratory before release, so the vial you reorder in six months is the vial you have today.
Our standards
Three things we hold to on every lot — and the document that proves each one.
- 01
Independent batch testing
Sterility, endotoxins, pH, and benzyl alcohol level are verified by an independent laboratory before any lot is released.
- 02
Published transparency
The current lot's full Certificate of Analysis is published before it ships — check your vial's lot code against it any time.
- 03
Sealed, lot-coded vials
One formulation, filled by the manufacturer in controlled, numbered lots and sealed before shipping, so every vial matches the last.
Wholesale Orders
Streamlined bulk fulfillment
Volume pricing and consistent supply for laboratories and organizations ordering 300+ vials or recurring shipments.
Our standard
Precision matters in research
One formulation, filled by the manufacturer in controlled, numbered lots and tested by an independent laboratory before release — so the vial you receive matches the one before it, and the results are published where you can read them.
Ordering
How ordering works
Three steps from pack to bench.
Step 1: Select your pack
Pick a pack of 1 to 200 vials. Each step up drops the per-vial cost.
Step 2: Secure checkout
Complete a standard secure checkout. US orders only; shipping is calculated at checkout.
Step 3: Ships same day
Orders placed by 2 PM ET, Mon–Fri go out the same business day — tracked via UPS or USPS in plain, protective packaging.
Ordering with confidence
What your lab can count on
Four things we commit to on every order — each one written down elsewhere on this site, so you can hold us to it.
Order today, it leaves today
Orders placed by 2 PM ET, Monday to Friday, are packed and handed to the carrier the same business day. Tracking is emailed the moment it goes.
Documentation before you purchase
The certificate for the lot currently shipping is published in full on this site — results on the page, not behind a request form. Check it before you order, not after.
Lot-to-lot consistency on reorders
One formulation from one manufacturer, filled in controlled, numbered lots. Reordering gets you what you had last time, and the lot code on the label proves which run it came from.
Secure checkout, and a written resolution path
Payment runs through our Shopify-hosted checkout. If a shipment is documented as damaged, lost, or wrong, it is resolved with a replacement or a credit — no return to arrange.
Current shipping lot
- Product
- 30 mL Sterile Bacteriostatic Water (0.9% benzyl alcohol)
- Tested for
- Identity · Purity · Benzyl alcohol level · Microbial DNA · Sterility · Endotoxins · pH
- Tested by
- Freedom Diagnostics and Chromate, independent
- Reported
- September 4, 2026
- Status
- Currently shipping on all orders
The lot code on your vial label should match the code above.
FAQ
Frequently asked questions
The short version of what laboratory buyers ask most — product, COA lookup, and shipping.
What is bacteriostatic water?
Bacteriostatic water is sterile water with benzyl alcohol added as a preservative, which suppresses bacterial growth so the vial can be accessed more than once. It is used as a diluent and reconstitution solvent in laboratory research and analytical applications.
Is bac water the same as bacteriostatic water?
Yes. Bac water is the common short name for bacteriostatic water: sterile water preserved with 0.9% benzyl alcohol. Our 30 mL vial is the same product under either name.
What does BacterioWater sell?
BacterioWater is a laboratory research supplier specializing in research-grade bacteriostatic water. Our current catalog is 30 mL sterile bacteriostatic water (0.9% benzyl alcohol), available in packs of 1–200 vials and in wholesale quantities. The vials are filled by a third-party manufacturer in controlled lots and batch-tested by an independent laboratory; we stock and ship them with each lot's certificate published.
Do you manufacture this product?
No. BacterioWater is an independent laboratory supplier, not the manufacturer. The product is manufactured and filled by a third-party facility and tested by an independent laboratory before release. What we do is stock the finished vials, publish the certificate for the lot in hand, and ship it.
How fast do orders ship?
Orders placed by 2 PM ET, Monday to Friday are packed and handed to the carrier the same business day. Orders placed after the cutoff, at weekends, or on a public holiday go out the next business day. Delivery time after dispatch depends on the carrier service shown at checkout.
How do I look up my COA?
Open the Lab Testing & COA page and compare the lot code printed on your vial label to the certificates published there. If the two match, the results on that page are the results for the vial in your hand. If they don't, contact us at shipping@bacteriowater.com with the code and we'll confirm that lot's status.
Do you ship internationally?
We currently ship only within the United States, and we don't ship to freight forwarders or package-forwarding addresses.
Do you send tracking details?
Yes — a tracking number is emailed to you at dispatch, and it covers the shipment from our facility to your address. The carrier (UPS or USPS) scans the parcel in transit, so the link stays current without you having to ask us for an update.
How should bac water be stored?
Follow the conditions printed on the label: controlled room temperature, 20 °C to 25 °C, out of strong light, and never frozen. Keep the stopper clean between accesses. Set aside any vial that is cracked, leaking, cloudy, discolored, or past the expiry date on its label rather than using it. Shelf life, refrigeration and expiry are covered in our storage guide.
Order from a verified lot — it ships today
30 mL vials from $12.49, down to $5.49 a vial on the 200-pack. Place your order by 2 PM ET, Mon–Fri and it leaves the same business day, tracked.