Quality assurance
Quality & Certificates of Analysis
We keep the catalogue focused so the documentation stays clear. Every product lists batch information; Certificates of Analysis with batch-specific analytical results are available for fulfilled orders.
What you get with an order
- Batch information listed per variant
- Certificate of Analysis available for fulfilled orders
- Safety Data Sheets available on request
- Free Royal Mail 1st class tracked on UK orders. Orders before 17:00 (Mon–Fri) dispatch the same day.
Sample COA layout
Below is the document structure we use for batch Certificates of Analysis — including HPLC chromatogram and mass-spectrometry charts. It is illustrative only; send us your order reference to request the issued COA for a fulfilled batch.
Sample — not a live batch document
www.edinburghpeptides.co.uk
Edinburgh Peptides
Document: COA-ERL-BPC157TB-2026
CERTIFICATE OF ANALYSIS
Amino acid sequence
Blend — BPC-157: GEPPPGKPADDAGLV + TB-500 (Tβ4): Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES
15 + 43 (blend) residues
Analytical results
HPLC chromatogram
RP-HPLC C18 — UV detection at 220 nm — gradient 10–70% ACN in 0.1% TFA over 30 min — flow 1.0 mL/min
Main peak RT 15.67 min · Area 99.49% · Largest imp 0.32% · Total related 0.51%
Mass spectrum ESI-MS positive
Electrospray ionisation — positive mode
Observed [M+H]+ 1420.6 (BPC-157) · 848.0 (TB-500) · MW 1419.56 + 846.97 g/mol
Overall result: Conforms to specification
Acetate salt (report)
HPLC chromatogram RP-HPLC C18
Mass spectrum ESI-MS positive
| Test parameter | Method | Specification | Result | Status |
|---|---|---|---|---|
| Appearance | Visual | White to off-white powder | Conforms | Pass |
| Peptide purity | RP-HPLC (C18) | ≥ 98.0% | 99.49% | Pass |
| Molecular weight confirmation | ESI-MS | Within ± 1.0 Da of theory | Conforms | Pass |
| Water content | Karl Fischer | ≤ 10.0% | 5.2% | Pass |
| Counter-ion content | HPLC | Report | 6.3% (acetate) | Report |
| Total related substances | RP-HPLC | ≤ 2.0% | 0.51% | Pass |
| Largest single impurity | RP-HPLC | ≤ 1.0% | 0.32% | Pass |
| Residual solvent — Acetonitrile | GC-HS | ≤ 410 ppm | < 410 ppm | Pass |
| Residual solvent — DCM | GC-HS | ≤ 600 ppm | < 600 ppm | Pass |
| Residual solvent — DMF | GC-HS | ≤ 880 ppm | < 880 ppm | Pass |
| Bacterial endotoxins | LAL kinetic turbidimetric | < 5 EU/mg | < 0.5 EU/mg | Pass |
| Bioburden | USP <61> | < 100 CFU/g (USP <61>) | < 10 CFU/g | Pass |
How to request a COA or SDS
- Place and pay for your order.
- After fulfilment, email or WhatsApp us with your order reference and the product name.
- We send the batch COA (and SDS on request) for that fulfilment.
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