Bacteriostatic Water (BAC Water) is sterile water for injection containing 0.9% benzyl alcohol as a preservative. The benzyl alcohol content inhibits microbial growth, allowing multiple-use withdrawals from a single vial while maintaining sterility between uses. BAC Water is the most commonly used reconstitution medium in peptide and protein research laboratories. Heartland Bio Labs supplies BAC Water in sterile multi-dose vials for qualified laboratory use.
Research Use Only — Not for Human Consumption
BAC Water (Bacteriostatic Water)
- ≥99% HPLC
- Mass Spec Verified
- COA Per Lot
- US Lab
Bacteriostatic Water (BAC Water) is sterile water for injection containing 0.9% benzyl alcohol as a preservative. The benzyl alcohol content inhibits microbial growth, allowing multiple-use withdrawals from a single vial while maintaining sterility between uses. BAC Water is the most commonly used reconstitution medium in peptide and protein research laboratories. Heartland Bio Labs supplies BAC Water in sterile multi-dose vials for qualified laboratory use.
$9.00
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If a lot ever fails its COA spec, we replace it free or refund — no questions.
BAC Water is an essential laboratory supply in any peptide research setting. It serves as the standard reconstitution vehicle for lyophilized peptide compounds, proteins, and other research compounds that require aqueous solubilization. The 0.9% benzyl alcohol preservative system is documented in USP standards as an effective antimicrobial agent that maintains solution sterility through multiple punctures over an extended period.
This item is supplied strictly for laboratory use as a reconstitution and dilution medium for research compounds.
Product Characteristics
- Composition: Sterile water + 0.9% benzyl alcohol (preservative)
- Form: Clear, colorless sterile solution in sealed multi-dose vials
- Application: Reconstitution medium for lyophilized research peptides and proteins
- Multi-dose format: Allows multiple withdrawals while maintaining sterility
| Purity | ≥99% HPLC |
|---|
Handling Information
Handle using standard aseptic laboratory technique. Use a sterile needle and syringe for each withdrawal. Visually inspect for particulates or discoloration before use. Do not use if solution is cloudy, discolored, or contains visible particles. This item is intended for laboratory and research use only.
Storage Requirements
- Store at room temperature (15–25°C) or refrigerate at 4°C
- Protect from freezing and direct sunlight
- Once opened, use within 28 days
- Record opening date on vial
5.0
★★★★★
Based on 89 verified researcher reviews
B. Sanders
✓ Verified buyer
2026-04-23
★★★★★
Sterile bacteriostatic water at a fair price. Vial integrity perfect, no leaks, properly sealed.
Dr. R. Holloway
✓ Verified buyer
2026-04-08
★★★★★
10mL is the right research size. Reliable companion to the peptide line.
Casey D.
✓ Verified buyer
2026-03-21
★★★★★
Ships fast, well-packaged. Easy reorder every time.
How should I store this peptide?+
Lyophilized peptides should be stored at −20°C in a dry, light-protected environment. Avoid repeated freeze-thaw cycles. Once reconstituted, store at 2-8°C and use within 4-8 weeks depending on the compound.
What should I reconstitute it with?+
Bacteriostatic water or sterile water for research use. We recommend our companion BAC Water for consistency. Specific reconstitution volume depends on your research protocol — refer to the Specifications tab for solubility data.
How quickly do orders ship?+
Orders confirmed before 2:00 PM CT ship the same business day from our facility in Tulsa, OK. Standard US transit is 2-5 business days. Tracking provided at shipment.
Is the COA verified independently?+
Yes. Every lot is tested by HPLC for purity (target ≥99%) and mass spectrometry for molecular identity before release. The COA is generated from the actual lot data, not a generic template.
Can I get bulk or institutional pricing?+
Yes — qualified research facilities and high-volume orders receive tiered pricing. Contact us with your institution information and target quantities.
Often paired with
View this product's Certificate of Analysis
Every lot is independently verified — HPLC purity, mass spec identity, lot number, storage parameters. Click below to view or download.
Look up COA in portal →Customer Reviews
5.0
★★★★★
Based on 89 verified researcher reviews
B. Sanders
✓ Verified buyer
2026-04-23
★★★★★
Sterile bacteriostatic water at a fair price. Vial integrity perfect, no leaks, properly sealed.
Dr. R. Holloway
✓ Verified buyer
2026-04-08
★★★★★
10mL is the right research size. Reliable companion to the peptide line.
Casey D.
✓ Verified buyer
2026-03-21
★★★★★
Ships fast, well-packaged. Easy reorder every time.
Research Use Only: This product is sold by Heartland Bio Labs for research and laboratory use only. Not intended for human or veterinary consumption, administration, or therapeutic use. This product has not been evaluated by the Food and Drug Administration. Not a drug. Not a dietary supplement. Researchers are responsible for compliance with all applicable regulations.