Bacteriostatic Water
0.9% benzyl alcohol, sterile USP-grade solvent.
Also known as: BAC · BAC Water · BAC3 · BA03 · BA10 · AA10 · AA Water · Bacteriostatic water 3ml
CAS 7732-18-5 · H2O + 0.9% BA
Lead time
Ships in 1–2 days
Purity
USP
CAS Number
7732-18-5
Molecular Weight
18.0
Formula
H2O + 0.9% BA
Form
Sterile solution
Packaging
10mL vial · 10 vials/box
Storage
Room temperature
Solubility
Solvent
Chemical structure
2D structure · Source: PubChem (NIH)
Research applications
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative, used to reconstitute lyophilized peptides and compounds in research settings. It maintains sterility for repeated draws over a defined period and is a standard laboratory diluent for peptide reconstitution protocols.
Quality Documentation
How we verifyRaw material screening
Off-spec lots never enter synthesis
In-process monitoring
Intermediates characterized at checkpoints
HPLC-MS verification
Identity, purity & quantitation per batch
A batch-specific COA ships with every order — see the format before you buy.
Request sample COAFrequently asked questions
What is Bacteriostatic Water?
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative, used to reconstitute lyophilized peptides and compounds in research settings. It maintains sterility for repeated draws over a defined period and is a standard laboratory diluent for peptide reconstitution protocols.
What purity is Bacteriostatic Water?
USP purity, HPLC-MS verified per batch.
What is the CAS number of Bacteriostatic Water?
CAS 7732-18-5 · Molecular formula H2O + 0.9% BA · Molecular weight 18.0.
How long does Bacteriostatic Water take to ship?
Ships in 1–2 days after order confirmation.
How should Bacteriostatic Water be stored?
Room temperature. Solubility: Solvent.
Is Bacteriostatic Water for human use?
No. Bacteriostatic Water is a research compound for laboratory research use only — not for human or veterinary use.
For pricing and availability of Bacteriostatic Water, contact our research team.
For laboratory research use only.
Related compounds
Sterile Empty Vials
10mL Type-I borosilicate, sterile, ready to use.
10mL vial, flip-off seal
25 vials/tray · In stock
Insulin Syringes 1mL
29G × 1/2", U-100, individually wrapped.
1mL U-100 syringe
100 pcs/box · In stock
PTFE Syringe Filters
0.22μm hydrophobic membrane, 25mm.
25mm disc filter
50 pcs/box · In stock
Related journal
Bacteriostatic Water: The Solvent Behind Every Vial
What bacteriostatic water is, why the 0.9% benzyl alcohol matters, and how it fits into lyophilized compound reconstitution.
BPC-157 Dosage and Reconstitution Math: 5 mg Vial in the Lab
BPC-157 vial math — reconstituting a 5 mg lyophilized vial, mg to mL and U-100 unit conversions, and common research dose ranges.
BPC-157 + TB-500 Blend: What the Fixed 5 mg : 5 mg Ratio Means in Practice
The canonical repair-pathway blend explained — why 5:5 mg, how to reconstitute a 10 mg dual-vial, per-component dosing math, and when separate vials beat a blend.