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A newer test is available. This page shows Batch B1726048 tested Jun 2026. View the latest batch (August 2026) →
Certificate of Analysis

Research Water

Batch B1726048 · Tested June 23, 2026

✓ Third-Party Lab Tested

Independent laboratory testing confirms purity, composition, and endotoxin safety per USP <85> standards. Results apply only to this specific batch; for research use only.

Sample Summary

Identification and intake details for this tested batch.

Product
Research Water
Batch / Lot
B1726048
Accession #
2606230440
Test Date
June 23, 2026
Appearance
Clear Liquid
Identity
Confirmed via LC-MS

Purity Analysis

HPLC with UV detection coupled with mass spectrometry (LC-MS)

Purity (HPLC-UV)
99.97%
Identity (LC-MS)
Benzyl Alcohol
Test Method
HPLC with UV detection coupled with mass spectrometry (LC-MS)
What this test measures

High-performance liquid chromatography with UV detection separates the peptide from related impurities and quantifies each fraction. Mass spectrometry confirms molecular identity by measuring the exact mass-to-charge ratio.

Endotoxin Analysis

Limulus Amebocyte Lysate assay in accordance with USP <85>.

Result
✓ Cleared (below threshold)
Sensitivity
≤0.05 EU/mL
What this test measures

The LAL assay detects bacterial endotoxin at the reporting threshold shown. Both replicates must be below the threshold established by USP Chapter <85> to clear. For research-grade material handling only.

Freedom Diagnostics
Issued06/23/2026

Full Certificate PDF

Signed laboratory-issued PDF with chromatogram and mass confirmation plots.

Open in new tab ↗ Download PDF

Test History for Research Water

9 independent lab tests on file for this product.

99.93%
Avg Purity · 5 batches
99.87% – 99.97%
Range
8 on file
Endotoxin Tests
99.87%
Batch O2626049
Aug 24, 2026 · Purity + Endotoxin
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99.94%
Batch O3126048
Aug 24, 2026 · Purity + Endotoxin
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99.97%
Batch B1726048
Jun 23, 2026 · Purity + Endotoxin
Current
99.95%
Batch B1726048
May 11, 2026 · Purity + Endotoxin
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99.91%
Batch B1726048
May 5, 2026 · Purity + Endotoxin
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Cleared
Batch B0526
Apr 8, 2026 · Endotoxin
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Cleared
Batch B0526
Feb 20, 2026 · Endotoxin
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Cleared
Batch B0526
Feb 18, 2026 · Endotoxin
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Batch B0526
Feb 18, 2026 · Purity
View →

Frequently Asked Questions

Quick references for what each test means.

What is HPLC-UV purity testing?
High-Performance Liquid Chromatography (HPLC) separates the peptide from related impurities based on how strongly each molecule interacts with a chromatographic column. A UV detector quantifies each separated fraction, and the total peptide peak area divided by all peaks yields the purity percentage.
What does LC-MS confirm?
Liquid Chromatography–Mass Spectrometry (LC-MS) confirms the peptide's molecular identity by measuring its exact mass-to-charge ratio. This verifies the peptide is what it claims to be — not a related molecule with a similar chromatographic profile.
Why are endotoxin tests run in duplicate?
USP <85> requires duplicate analysis to rule out measurement error. Both replicates must be below the sensitivity threshold (typically ≤0.05 EU/mL) for the batch to pass. Disagreement between replicates triggers a re-test.
Does "Cleared" mean safe for human use?
No. "Cleared" here means the batch meets the USP <85> endotoxin reporting threshold — a standard relevant to laboratory research materials. All products from Oath Research are strictly for research use only and are not approved for human, veterinary, diagnostic, or therapeutic applications.
Are all my orders from this exact batch?
Not necessarily — batches are rotated as inventory moves. Check the batch code on your vial against the test history above to find the matching certificate. Every batch we sell has been independently tested.
Research Use Only The peptides tested are intended for research use only and are not approved for human or veterinary use, diagnostic, therapeutic, or clinical applications. Results apply only to the specific sample provided and should be interpreted by qualified professionals within the scope of the intended research.
Research Water
99.97% · Endo Cleared
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