USP-grade bacteriostatic water with 0.9% benzyl alcohol preservative — for in-vitro dilution use.
Grade
USP Pharmaceutical (Pfizer)
Fill volume
3 ml
Benzyl alcohol
0.9% w/v
Endotoxin
< 0.5 EU/ml
Format
Liquid, multi-dose vial
Storage
Room temperature (15–25 °C)
Shelf life
24 months from MFG
$10CAD/ 3 ml vial
In stock · Lot LM-BAC-2602
Qty
Add $300 for Free shipping
USP Pharmaceutical grade (Pfizer)
~4 days to your door
COA bundled with shipment
Lot samples retained 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
Composition
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
Type
Solvent (not a peptide)
Quality
Test
Specification
Grade
USP Pharmaceutical (Pfizer)
Appearance
Clear, colorless solution
Benzyl alcohol
0.9% w/v
pH
4.5–7.0 (USP)
Endotoxin
< 0.5 EU/ml (LAL)
Sterility
Meets USP <71>
Lot LM-BAC-2602
Manufactured 04 Mar 2026 · Released 11 Mar 2026 · Tested by Lumera QC, Canada. Retain samples held under storage spec for five years from release date.
Verification
Method
Result
Appearance (visual)
Clear, colorless, particulate-free
Benzyl alcohol assay
Conforms (0.9% w/v)
pH (USP)
Conforms (4.5–7.0)
LAL endotoxin
< 0.5 EU/ml
Sterility (USP <71>)
Pass
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.
Selected references
USP General Chapter <1191>. Stability considerations in dispensing practice. United States Pharmacopeia.
Wilson JT et al. Toxicity of preservatives in injectable formulations. J Pediatr. 1986;109(2):394–396.
Pfizer Bacteriostatic Water for Injection prescribing information. Pfizer Inc.
Citing this material
Bacteriostatic Water for Injection USP (0.9% benzyl alcohol), Lumera Labs Inc., Cat. No. LUM-BAC-30, Lot LM-BAC-2602.
