PE22-28 99.7% Purity — Peptide Research SupplyCertificate of Analysis · Independent third-party lab result

Name: PE22-28 COA — Peptide Research Supply (99.7% purity)
Creator: Freedom Diagnostics
License: https://titratelab.com/terms

Tested purity 99.7% High purity · 99.676%

Dose vs label -43.5% Under the labeled dose

Evidence URL referenced

Test date: 2025-12-11
Testing lab: Freedom Diagnostics
Batch / lot: PE2-25A01
Quantity: 11.29 mg
Endotoxins: —
Assay method: HPLC + MS
Label dose: 20mg

Context

How this result compares

This PE22-28 certificate's tested purity of 99.68% ranks higher than 90% of the 5 PE22-28 certificates with a purity result we have catalogued (median 99.41%).

Tested 2025-12-11 by Freedom Diagnostics via HPLC + MS. This test is newer than 50% of our catalogued PE22-28 certificates.

Peptide Research Supply has 27 certificates in our corpus, including 1 for PE22-28 at a median tested purity of 99.68%.

Manufacturer

Peptide Research Supply

View vendor profile

Source

freedom_diagnostic

URL referenced

This entry references an upstream lab URL we crawled. We did not save the artifact, so we can't prove the report still loads as it did when we catalogued it.

Method: HPLC + MS
Test type: freedom_composite
Dose: 20mg
Catalogued: 2026-07-04

Other PE22-28 certificates

This certificate is part of TitrateLab's community-trust corpus. See more from Peptide Research Supply or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →