What bacteriostatic water is
There is nothing else in it: no buffer, no salt and no other additive. It is a simple two-component solution, and its composition, not its catalog title, is what defines it.
BAC Water 10ml specification
| Catalog name | Reconstitution Solution (BAC Water) |
|---|---|
| Composition | Sterile water with 0.9% benzyl alcohol |
| Preservative | Benzyl alcohol, C7H8O, CAS 100-51-6 |
| Solvent | Water, CAS 7732-18-5 |
| Fill volume | 10 ml |
| Container | Sterile glass vial |
| Form | Clear liquid solution |
How BAC Water is characterized
A solvent is not judged by a single-compound purity percentage; what matters is that the solution is what the label says. Its aromatic ring absorbs in the ultraviolet, with a maximum near 257 nm, so it can be quantified by reverse-phase HPLC with UV detection against a reference standard, or by gas chromatography. Appearance (a clear, colorless liquid free of visible particles) and pH are the other routine composition checks for a solution of this kind.
Any test data we publish for this solvent appears on this page, and like the rest of the catalog the vials are not marked with lot or batch numbers; each solvent vial is told apart by crimp and cap color.
Research contexts for BAC Water
- Comparative UV baseline studies of preserved versus unpreserved water
This solution is a laboratory solvent for in-vitro and analytical use only, not for use in people or animals.
BAC Water questions
Is bacteriostatic water the same as sterile water?
No.
Why does this product have no HPLC purity figure?
It is a solvent, not a single compound.
Why does benzyl alcohol appear on a UV chromatogram?
It contains a benzene ring that absorbs ultraviolet light, so it is detected as its own peak and should be treated as a known solution component.
Buying BAC Water 10ml in the USA
BAC Water 10ml ships from inside the US with tracking, and orders over $100 ship free. Laboratories that go through solvent blanks quickly can ask about bulk pricing. This solvent is sold only to research institutions, licensed researchers, universities and laboratory R&D purchasers.
BAC Water 10ml is a laboratory solvent for in-vitro and analytical work only; human or veterinary use is excluded.
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