PrymaLab AnalyticalCertificate of Analysis · Lot release · tested in-housePrymaLab Analytical · Attn: Sample intake · 3705 Music Branch Rd · Ashland, KY 41102 · United States
Certificate number
PL-26-00140
Key
ASBZA2CE
Verify at prymalab.net/testing/verify/
BAC Water 10 mL Lot PL-2610-018 · analysed October 2, 2026 · issued October 16, 2026
Purity · RP-HPLC—Not applicable: bacteriostatic water is a diluent (no HPLC purity test)
Benzyl alcohol · USP <341>0.89%Specification 0.85–0.95% • pH 5.7 (specification 4.5–7.0)
ConclusionPASSMeets every specification for the tests performed
The certificate
Summary
| Compound | Bacteriostatic water Sterile water for injection with benzyl alcohol as preservative; a diluent, not a peptide |
|---|---|
| CAS number | 7732-18-5 (water) · 100-51-6 (benzyl alcohol) |
| Molecular formula | H2O + benzyl alcohol (C7H8O) |
| Theoretical mass | n/a |
| Sequence / structure | Water for injection preserved with benzyl alcohol |
| Storage | — |
| Label claim | 10 mL per vial |
| Lot number | PL-2610-018 |
| Certificate number | PL-26-00140 |
| Date of analysis | 2026-10-02 (retest 2028-10-01) |
| Purity (RP-HPLC) | — |
| Identity (LC-MS) | 0.89% |
| Endotoxin (LAL) | 0.26 EU/mL |
| Sterility | No growth |
| Conclusion | PASS |
| Tested by | PrymaLab Analytical (PrymaLab's own laboratory, Ashland, KY). In-house result, not an independent third-party test. |
Third-party testing guarantee. Have this product tested by any independent laboratory. If the result does not come back as the compound named on the label, at the purity and amount stated, we refund your order in full and reimburse the cost of the test. Email the lab report and your order number to michael@prymalab.net.
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