USP Monograph
Bacteriostatic Water for Injection — official monograph specifications
2024
View sourceResearch use only
CoA
included
included
Reconstitution Solvent
Helix H₂O
Bacteriostatic Water0.9% Benzyl AlcoholBAC Water
Sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative — the standard diluent for reconstituting lyophilized research compounds across multiple withdrawals.
Dosage
$42.99
$29.99
Quantity
1
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Certificate of Analysis
Third-party testedISO/IEC 17025 accredited
LatestISO 170257× testing
99.9%
Purity
✓ Passed full QC panel
- Variant
- Helix H₂O 10ml
- Lot #
- HLX-W0311
- Labeled
- 10ml
- Actual
- 10.1ml
- Tested
- Jul 8, 2026
Full QC panel7× tested
- Benzyl Alcohol0.90%✓
- Fill Volume10.1ml✓
- pH5.6✓
- Particulate MatterConforms✓
- Heavy Metals (ICP-MS)Not Detected✓
- Sterility (USP <71>)No Growth✓
- Endotoxin (USP <85>)< 0.005 EU/mL✓
ISO/IEC 17025 accredited
Researchers also study
View all compoundsTechnical specifications
Compound information
Molecular profile
What is Helix H₂O?
- Type
- Sterile aqueous diluent
- CAS Number
- 7732-18-5
- Molecular Weight
- 18.02 g/mol
- Amino Acids
- —
- Sequence
- H₂O + 0.9% C₇H₈O
- Formula
- H2O
Storage requirements
Stability information
Room temperature stableMulti-use vialDo not freeze
Lyophilized (powder)
15–30°C
Reconstituted
Use within 28 days of first puncture
Shelf life
24 months sealed
Ships at ambient temperature — lyophilized material is stable in transit without cold-chain handling.
Peer-reviewed research
Sources & references
Published literature involving Helix H₂O. Listed for reference only — citation here is not a claim of efficacy or a recommendation of any use.
International Journal of Pharmaceutics
Preservative efficacy of benzyl alcohol in multi-dose parenteral containers
2016
View sourcePDA Journal of Pharmaceutical Science and Technology
Stability considerations for reconstituted lyophilized peptides
2019
View sourceResearch use only
Helix H₂O is supplied strictly for in-vitro laboratory research. It is not a drug, food, or cosmetic, is not for human or veterinary use, and has not been evaluated by the U.S. Food and Drug Administration. Purchaser assumes all responsibility for safe handling and lawful use.