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SYN-2634
0.9% Benzyl Alcohol USP% Purity SYN-2634 Research Grade HPLC Verified

BAC Water (Bacteriostatic Water)

Bacteriostatic Water (0.9% Benzyl Alcohol) · Pharmaceutical Grade

Select Strength — 10ml

$30.00
H₂O + 0.9% C₇H₈O MW: 18.015 g/mol CAS: 7732-18-5
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For in vitro laboratory research use only. Not for human consumption, diagnostic, or therapeutic use.

Certificate of Analysis

BATCH VERIFICATION

Every batch independently tested by accredited third-party laboratory. Full COA available on request.

Current Batch
HPLC Purity
Lot Number SYN-2634-BACW
Test Date
Labeled 0.9% BZA
Actual 0.9% BZA / Sterile

Research Data

KEY FINDINGS

🧬
0.9%
Benzyl Alcohol (USP Grade)
Bacteriostatic preservative extends reconstituted peptide stability vs. plain sterile water
🔬
28d
Multi-Dose Vial Stability
Opened 10mL vial remains sterile for 28 days vs. ~3–7 days for plain sterile water
✅
USP
Pharmaceutical Grade Standard
Meets United States Pharmacopeia sterility and pyrogen standards
📦
10mL
Multi-Dose Vial Format
Standard 10mL multi-dose vial — sufficient for multiple peptide reconstitutions

Mechanisms of Action

IN VITRO RESEARCH OVERVIEW

Data presented from peer-reviewed in vitro studies. All findings are laboratory observations only.

💧 Reconstitution Standard

0.9% Benzyl Alcohol — The Standard Peptide Diluent

Bacteriostatic water is the pharmaceutical standard for multi-dose injectable preparations. The 0.9% benzyl alcohol concentration inhibits microbial growth via disruption of bacterial cell membranes, maintaining sterility for 28 days in opened vials — the critical factor for sequential aliquot preparation from peptide stocks.

Microbial growth (BAC Water) None at 28d
Microbial growth (Sterile Water) Present at 7d
🔬 28-day bacteriostatic stability — the standard multi-dose diluent for all injectable lyophilised peptide research preparations.
USP <797> Pharmaceutical Compounding Standards
28 days
Multi-Dose Bacteriostatic Stability vs. 3–7 Days Plain Water

Bacteriostatic water (0.9% benzyl alcohol USP) maintains sterility in multi-dose vials for up to 28 days after opening — compared to 3–7 days for plain sterile water. The benzyl alcohol prevents microbial growth without affecting peptide solubility or stability.

Reconstitution Stability — BAC Water vs. Sterile Water
Sterility (BAC Water, opened) 28 days
Sterility (Sterile Water, opened) 3–7 days
Source: USP <797> Pharmaceutical Compounding Standards

Analytical Data

PURITY VERIFICATION

Purity by Method — Batch SYN-2634-BACW
Specification Value
CAS Number 7732-18-5
Molecular Formula H₂O + 0.9% C₇H₈O
Molecular Weight 18.015 g/mol
Purity (HPLC) 0.9% Benzyl Alcohol USP%
Appearance Clear sterile aqueous solution
Solubility Universal aqueous diluent
Storage Unopened: 15–25°C · Opened: 2–8°C
Shelf Life 28 days after opening (multi-dose)
Research Grade Yes — For In Vitro Use Only
📊

What Research Has Shown

TRIAL RESULTS

USP <797> Pharmaceutical Compounding Standards

28 days

Opened Vial Sterility Duration vs. 3–7 Days for Plain Sterile Water

BAC Water (0.9% BZA) 28 days
Sterile Water 3–7 days

Comparative Activity Profile

BAC Water (0.9% BZA) Sterile Water
🛡️

In Vitro Safety Data

SAFETY PROFILE

Bacteriostatic water (0.9% benzyl alcohol USP) is a pharmaceutical-grade preparation meeting USP <797> sterility and pyrogen standards. The 0.9% benzyl alcohol concentration is the established safe limit for multi-dose parenteral preparations as defined by FDA and USP. It is compatible with all lyophilised peptides in the Syntra catalogue.

Observed Adverse Indicators

0%

Adverse events (benzyl alcohol at 0.9%)

low
0%

Peptide compatibility issues reported

low
0%

Pyrogen / endotoxin failures (USP batch)

low

⚠️ Theoretical Concern

USP Standards & Research Handling Context

BAC Water is the standard pharmaceutical diluent for multi-dose injectable preparations. USP <797> compliance is verified for every production batch.

  • USP Grade — meets sterility, pyrogen-free, and 0.9% ± 0.1% benzyl alcohol concentration standards
  • 28-day opened vial stability vs. 3–7 days for plain sterile water — enables sequential aliquot preparation
  • Compatible with all Syntra lyophilised peptides — does not affect peptide solubility or stability
  • For in vitro laboratory research use only — not for human or veterinary administration
❓

Researcher Reference

FREQUENTLY ASKED QUESTIONS

Peer-Reviewed Literature

RESEARCH CITATIONS

United States Pharmacopeia
USP <797> Pharmaceutical Compounding — Sterile Preparations
2023 USP Editorial Board
USP <797> — View on PubMed

All citations refer to published peer-reviewed in vitro research. Data presented for scientific reference only. No claims made regarding human therapeutic use.

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