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Laboratory reagent

BAC Water

Bacteriostatic water · 0.9% benzyl alcohol · 10 mL
0.9% BENZYL ALCOHOL STERILE-FILTERED
Vial size
10 mL — most popular
$12.00
1 vial · $12.00 each

Bacteriostatic water is sterile water with 0.9% benzyl alcohol supplied for qualified laboratory research applications. It is GC-verified, endotoxin-screened, and sterile-filtered with a batch-specific Certificate of Analysis. For research use only.

Sterile-filtered · GC verified · batch-specific CoA
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Our promise — the risk stays with us
Quality documentation — the available report documents GC purity, pH, endotoxin, and microbial results for the referenced material. BAC Water is not covered by the Money-Back Purity Guarantee.
Free shipment protection — coverage includes carrier-confirmed loss or non-delivery, physical transit damage, an incorrect item, or a physical fault on delivery. Choose one no-cost replacement or an original-payment refund for the affected item. Terms apply.
0.9% benzyl alcohol — bacteriostatic
Batch-specific CoA included
Free shipment protection
Same-day dispatch

Bacteriostatic water is sterile water with 0.9% benzyl alcohol supplied for qualified laboratory research applications.

Laboratory workflows — supplied for qualified research applications.
Bacteriostatic system — formulated with 0.9% benzyl alcohol.
Sterile handling context — supplied for controlled lab preparation.
Documentation — supported by lot-specific analytical records.
For research use only — not for human consumption. No therapeutic, veterinary, or human-use claims are made.
Download this lot's CoA — GC Purity, Endotoxin & Sterility (PDF) Certificate authenticity is verified independently by Horizon Analytical →
99.9% by GCBenzyl alcohol assay
Endotoxin < 0.10 EU/mLLAL · USP <85>
Available quality reportVerify independently on Horizon
Specifications & certificate of analysis
Specifications

Exactly what's in the vial.

ProductBacteriostatic Water
Bacteriostatic agentBenzyl alcohol, 0.9%
Agent CAS number100-51-6
Agent formulaC₇H₈O
Agent mol. weight108.14 g/mol
Net volume10 mL
FormClear, colorless liquid
Purity (GC)≥ 99.5% (99.9%)
Refractive index (20°C)1.541
pH5.5 (4.5–7.0)
Endotoxin (LAL)< 0.10 EU/mL
SterilityNo growth
StorageRoom temp, protect from light
LotTR-BW-10037
Certificate of analysis

Proof for this exact lot.

Certificate of Analysis
tuned research · independent lab report
GC · LAL
VERIFIED
USA
CompoundBacteriostatic Water
Lot numberTR-BW-10037
Benzyl alcohol content0.90%
Refractive index (20°C)1.541
Endotoxin (LAL)< 0.10 EU/mL
SterilityNo growth
Purity by GC
99.9%
What BAC water is used for
Laboratory use

What BAC water is used for.

Sterile water preserved with 0.9% benzyl alcohol — a mild antimicrobial that inhibits microbial growth in laboratory research workflows.

Laboratory use

The standard solvent for bringing lyophilized research peptides and compounds into solution.

Multi-draw research

The 0.9% benzyl alcohol suppresses microbial growth, supporting repeated draws from a single vial.

Diluting stock

Used to dilute concentrated stock solutions down to working concentrations for in-vitro work.

General lab solvent

A clean, GC-verified, endotoxin-screened aqueous solvent for everyday bench research.

⚠ For research use only — not for human consumption. Bacteriostatic water is supplied strictly as a laboratory reagent. Nothing here is a claim of any therapeutic effect or intended use in humans or animals. Handle in accordance with your institution's protocols.
What makes it bacteriostatic
Composition & method

What makes it bacteriostatic

Bacteriostatic water is water for laboratory use preserved with 0.9% benzyl alcohol (CAS 100-51-6). Benzyl alcohol is a mild antimicrobial that inhibits the growth of common bacteria — which is what lets a single vial be drawn from more than once, unlike preservative-free sterile water, which is single-use. Every lot is assayed by gas chromatography, screened for endotoxin by LAL, and tested for sterility.

0.9%
Benzyl alcohol (w/v)
99.9%
Purity · GC
<0.10
EU/mL endotoxin
Verified on every lot
GC assayBenzyl alcohol contentLAL endotoxinSterilityRefractive indexpH
Multi-draw window: benzyl-alcohol-preserved water is commonly used within 28 days of first puncture when stored refrigerated at 2–8°C.
Analytical methods
Test methods referenced

Analytical parameters describe the quality specification of the reagent — composition, purity, endotoxin and sterility. They are not claims of any therapeutic effect, efficacy, or intended use in humans or animals.

Assayed by GC · LAL endotoxin · sterility tested · sterile-filtered in the USA · for research use only
Our guarantee
The guarantee

Risk stays with us, not you.

Quality documentation

The available report documents GC purity, pH, endotoxin, and microbial results for the referenced material. BAC Water is not covered by the Money-Back Purity Guarantee.

Read the available report

Use the certificate link above to inspect the reported methods and results for the referenced material.

Free shipment protection

Coverage includes carrier-confirmed loss or non-delivery, physical transit damage, an incorrect item, or a physical fault on delivery. Choose one no-cost replacement or an original-payment refund for the affected item. Terms apply.

Evidence details

Audit the selected strength.

Lower-page detail from Tuned's canonical SKU-to-certificate crosswalk. The purchase controls above remain the controlling selection and price interface.

Evidence for the selected strength

BAC Water · 10 ML

Physical SKU
TUN-BACWATER-10ML
Report / lot
Not stated
Analysis date
Not reported
Purity method
GC
Purity result
99.9%
Identity method
Not reported
Identity result
Not reported
Measured quantity
Not reported
Endotoxin
<0.10 EU/mL
Evidence status
Not applicable to peptide-purity classification
Guarantee class
Not eligible for a numeric purity guarantee
Inventory relationship
Unknown
Last verified
2026-08-22

No separate 3 mL or 10 mL fill certificate stated. This material-level record does not establish a separate fill certificate, sterility, human safety, efficacy, or suitability for human or animal use.

How this evidence should be read

GC composition reports the material-level composition result stated on the available report. Endotoxin, pH, benzyl alcohol, microbial, and fungal findings answer separate questions where reported. The record does not state a separate 3 mL or 10 mL fill certificate, and none of these findings establishes sterility, human safety, efficacy, or suitability for human or animal use. Certificate authenticity is checked independently through Horizon Analytical, not by Tuned. Read the full testing explanation.

Price and order transparency
Selected-size single-vial price
Existing quantity tiersBAC Water is excluded from peptide quantity discounts.

This read-only summary mirrors the purchase interface above. Cart-wide eligibility, current shipping terms, and guarantee terms are controlled by their linked storefront and policy surfaces.

Questions

BAC water, answered.

Composition, shelf life, sizing, documentation and research-use terms.

Add to cart
What is bacteriostatic water?
Sterile water preserved with 0.9% benzyl alcohol and supplied for qualified laboratory research applications.
How is it different from sterile / WFI water?
Preservative-free sterile water contains no antimicrobial preservative. Bacteriostatic water contains 0.9% benzyl alcohol, which inhibits microbial growth in laboratory settings.
How long does it last after opening?
Store according to the product label and applicable institutional laboratory procedures. Discard any vial showing cloudiness or particulates.
Which size should I choose?
Choose the vial volume appropriate for your laboratory requirements. Both sizes contain the same GC-verified 0.9% benzyl alcohol solution.
How is quality verified?
Every lot is assayed by gas chromatography (benzyl alcohol content and purity), screened for endotoxin by LAL, and tested for sterility. The batch-specific Certificate of Analysis is included free and downloadable above.
Is this for human use?
No. BAC water is sold strictly for research, laboratory and educational purposes only. It is not approved for human consumption, veterinary use, or any therapeutic application. By purchasing you confirm you are a qualified researcher and will comply with all applicable laws.
The solvent your research runs on

Ready when your research is.

BAC water — 0.9% benzyl alcohol, GC-verified, with a lot-specific CoA and free shipment protection.

BAC Water · 10 mL
$12.00 / vial · GC-verified
$12.00 Add to cart