Is Bacteriostatic Water from Lumera Labs HPLC verified?

Yes. Every Bacteriostatic Water lot Lumera Labs ships is HPLC-purity tested at synthesis and retested by Janoshik Analytical before release. The lot-specific Certificate of Analysis is published on the Lab Results page.

Is Bacteriostatic Water sold for human use?

No. Bacteriostatic Water is sold strictly as a laboratory reference standard for in-vitro research. It is not approved by Health Canada or the FDA for human use. Every order requires a research-use declaration.

How is Bacteriostatic Water shipped?

Bacteriostatic Water is lyophilized at synthesis, sealed under nitrogen, and shipped from Kelowna, BC at -20 C through cold-chain insulated packaging via Canada Post Xpresspost. Free shipping over $200 CAD. 24-48h transit Canada-wide.

Where can I see the COA for Bacteriostatic Water?

Each shipment includes a lot-specific Certificate of Analysis. The current lot's COA is also published at https://lumerapeptide.com/lab-results/ and can be cross-referenced by the batch number printed on each vial.

Home / Catalog / Reconstitution / Bacteriostatic Water 3 mg

4.6 · 215 researcher reviews

Reagent · 0.9% Benzyl Alcohol

Bacteriostatic Water

SKU LUM-BAC-30 · H₂O + C₇H₈O (0.9%) · Mixed (18.02 / 108.14 g/mol) · CAS 7732-18-5 / 100-51-6

USP-grade sterile water for in-vitro dilution use, preserved with 0.9% benzyl alcohol. Manufactured by Pfizer; supplied as-is.

Purity (HPLC): ≥ 99.99%
Net peptide: 5.00 mg ± 2%
Endotoxin: < 0.5 EU/mg
Format: Lyophilized vial
Storage: −20 °C, desiccated
Shelf life: 24 months from MFG

$20CAD / 3 mg vial

In stock · Lot 26-A031

Bulk 10+: $24 / vial

Add $200 for free cold-chain shipping

HPLC + MS verified per lot
Cold-chain to your door
COA bundled with shipment
Lot retains kept 5 years

Overview

Bacteriostatic Water for Injection is a sterile, non-pyrogenic preparation of water for injection containing 0.9% (w/v) benzyl alcohol as a bacteriostatic preservative. The benzyl alcohol inhibits microbial growth, allowing multi-use sampling from a single vial within the labeled in-use window.

Lumera supplies the Pfizer-manufactured product unchanged; the original USP labeling and Pfizer lot number ship with each vial. Stored and shipped at 2–25 °C.

Research applications

In-vitro dilution and reconstitution of lyophilized peptide reference standards. The benzyl alcohol preservative is compatible with most peptide chemistry; verify compatibility for any specific reference standard.

Sold for laboratory research only. This material is not a drug, food, or cosmetic and is not intended for diagnostic, therapeutic, or recreational use.

Identity

Parameter	Value
Sequence	Sterile-filtered water containing 0.9% (w/v) benzyl alcohol as a bacteriostatic agent
Molecular formula	H₂O + C₇H₈O (0.9%)
Molecular weight	Mixed (18.02 / 108.14 g/mol)
CAS number	7732-18-5 / 100-51-6
Length	Solvent (not a peptide)

Quality

Test	Specification
HPLC purity	≥ 99.0% (lot Per Pfizer lot: USP Pharmaceutical grade (Pfizer))
Mass confirmation	ESI-MS within 0.5 Da
Net peptide content	≥ 80% by AAA
Endotoxin	< 0.5 EU/mg (LAL)
Bioburden	< 10 CFU/g
Residual TFA	< 1.0%

Lot Per Pfizer lot

Manufactured 04 Mar 2026 · Released 11 Mar 2026 · Tested by Lumera QC, Kelowna BC. Retain samples held under storage spec for five years from release date.

Verification

Method	Result
RP-HPLC at 220 nm	USP Pharmaceutical grade (Pfizer) main peak
ESI-MS (positive)	N/A — solvent
Amino acid analysis	82.1% net peptide
LAL endotoxin	< 0.05 EU/mg
Karl Fischer (water)	2.8% w/w

Reconstitution

Allow vial to reach room temperature before opening (≥ 20 minutes). Reconstitute with 1.0–2.5 mL of sterile bacteriostatic water (0.9% benzyl alcohol). Inject solvent slowly down the inner wall of the vial; do not direct stream onto the lyophilized cake.

Swirl gently for 30 seconds. Do not vortex. Allow to dissolve for 5 minutes; clarity should be complete with no visible particulates.

Storage after reconstitution

Reconstituted solution is stable for 28 days at 2–8 °C in original vial. For longer storage, aliquot into low-binding tubes and hold at −80 °C; avoid repeated freeze-thaw cycles. Discard if turbidity, color change, or particulate matter is observed.