What is bacteriostatic water?
Bacteriostatic water is sterile water containing a small amount of benzyl alcohol, which inhibits bacterial growth across repeated withdrawals from the same vial. That makes it suitable for multi-use laboratory settings, where a single vial may be accessed more than once over a period of time — unlike plain sterile water, which is intended for single use only.
Specifications
| Volume | 10ml |
| Preservative | 0.9% (9mg/mL) benzyl alcohol |
| pH range | 4.5–7.0 |
| Stability | Up to 28 days after initial puncture, stored per lab protocol |
| Storage | Ambient laboratory temperature (20–25°C) |
| Container type | Multi-dose, sealed vial |
FAQ
What’s the difference between bacteriostatic and sterile water?
Sterile water contains no preservative and is intended for single use. Bacteriostatic water contains a small amount of benzyl alcohol that inhibits bacterial growth, which is why it’s suited to multi-dose laboratory containers accessed more than once.
Do you provide mixing ratios or reconstitution instructions?
No. This product is sold for laboratory research use, and specific reconstitution guidance falls under the researcher’s own laboratory protocol rather than something we advise on.
How long does an opened vial remain stable?
Up to 28 days after initial puncture when stored under appropriate laboratory conditions, per the product specification above.