⚠ Product Usage: For Research Use Only – Not for Human or Veterinary Use
$6.99 – $69.99Price range: $6.99 through $69.99
Bac Water (Bacteriostatic Water, USP-grade base) is a sterile, non-pyrogenic aqueous diluent containing 0.9% (9 mg/mL) benzyl alcohol as an antimicrobial preservative. It is supplied as a research-grade reference diluent for precise reagent reconstitution. Designed strictly for controlled laboratory settings, the bacteriostatic agent (Benzyl Alcohol) inhibits microbial growth, allowing researchers to make multiple volume transfers from a single multi-draw container over 28 days.
Not for consumption, in vivo administration, or any application outside a controlled laboratory setting.
10peptides products are supplied to qualified research professionals and institutional users for in vitro laboratory research only. KYC verification is required prior to order fulfillment, and we reserve the right to refuse orders that do not meet buyer qualification criteria. These products are not drugs, foods, cosmetics, or dietary supplements, have not been evaluated by the FDA, and are not intended for human or animal use. Any such use is prohibited and may violate federal, state, or local law. By purchasing, the buyer represents and warrants that the product will be used solely for in vitro research.
Molecular Data | |
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Product Ref | Bacteriostatic water |
CAS Number | 7732-18-5 |
Chemical Class | |
Molecular Weight | |
Sequence Length | |
Format | 3 ml and 10 ml vials |
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Solubility | |
Storage | room temp |
Intended Use | For laboratory research use only |
This product comprises a multi-draw sterile diluent known as Bacteriostatic Water. It is classified as an antimicrobial solvent, combining highly purified laboratory water with a 0.9% concentration of benzyl alcohol.
Unlike single-use sterile water that lacks preservatives and must be discarded immediately after opening, Bac Water’s multi-draw architecture enables researchers to maintain the sterility of their stock solutions over multiple experimental sessions. This makes it uniquely valuable for longitudinal cell-culture studies, stable research compound reconstitution, and comprehensive preclinical testing design.
In 2026-era preclinical research, this compound is utilized to study and prepare:
Reagent & Protein Reconstitution: Rehydrating lyophilized synthetic compounds (such as research-grade aminos) to create stable, sterile stock solutions for cell-based assays and analytical testing.
Micro-Volume Aliquot Preparation: Utilizing the benzyl alcohol preservative to allow a single sealed receptacle to be accessed repeatedly over 28 days, reducing reagent waste and ensuring consistent laboratory dilutions. Analytical Test Vehicles: Providing a controlled, preserved aqueous vehicle for diluting research compounds before ex vivo tissue studies or in vitro cellular modeling.
Instrument & Reagent Rinsing: Maintaining sterile conditions in the laboratory by using the bacteriostatic solution to rinse pipettes or analytical instruments used to handle highly sensitive compounds.
Preservative Interaction Assays: Studying the interaction of 0.9% benzyl alcohol on the half-life and stability of various synthetic amino-acid sequences in aqueous environments.
Benzyl Alcohol (Active Preservative in Bac Water)
PubChem CID 244 (Water: CID 962)


Benzyl Alcohol (used in Bac Water) PubChem ID: 244
Water (used as a solvent in Bac Water) PubChem ID: 962
Bacteriostatic water is a two-component system: purified water (H2O) and a 0.9% concentration of benzyl alcohol (C7H8O). Benzyl alcohol features an aromatic benzene ring attached to a methylene group bearing a hydroxyl substituent. This specific molecular structure provides the bacteriostatic properties, actively inhibiting the reproduction of bacteria and ensuring the extended 28-day viability of the multi-draw container.
Bacteriostatic Water is a sterile aqueous solution containing 0.9% benzyl alcohol. The preservative actively inhibits bacterial growth, allowing a multi-draw container to be accessed repeatedly for diluting or dissolving research compounds over time .
The critical difference is the presence of the preservative. Bacteriostatic water contains 0.9% benzyl alcohol, enabling multi-use over a 28-day period. Standard sterile water contains zero preservatives and must be discarded immediately after a single use to prevent bacterial contamination.
When handled using strict aseptic techniques in a sterile laboratory environment, the 0.9% benzyl alcohol preservative maintains the integrity of the solution for up to 28 days after the initial entry.
Absolutely not. This compound is classified strictly for laboratory investigation only. Any non-laboratory use—including personal, consumer, or wellness applications—violates our Terms of Service and will result in immediate order cancellation.






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The products on this website are for legitimate research use only. They are not intended to prevent, treat, or cure any illness or disease and are not intended for human consumption. By accessing this site, you acknowledge that you are at least 21 years of age, understand these terms, and have a legitimate research basis for buying these products
NOTE: All of our compounds are sold individually, and DO NOT include research supplies such as syringes. Most are sold in powder form and require reconstitution with a suitable diluent solution prior to research.