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This website supplies reference compounds strictly for laboratory and research use only. Products are not for human or animal consumption and are not approved for therapeutic, diagnostic, or dietary use.
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For laboratory research only · Not available to U.S. residents
Invented by Dr. Predrag Sikiric at the University of Zagreb.
99.57% HPLC · LOT 141213-4 · IDENTITY BY ESI-MS
Purity by HPLC.
99.57%
Our own certificate for the batch you receive — identity by ESI-MS.
Where that sits
96–100% axis
Purity is a quality measure — it says nothing about biological effect.
HPLC · COA-141213-4 · market band: Finnrick, 675 samples / 99 vendors
Purity, independently confirmed.
99.562%
Chromatogramplotted from reported peaks
PDA Ch1 220 nm
| Peak | Ret. time | Area | Conc. | Unit | Name | Area% |
|---|---|---|---|---|---|---|
| 1 | 2.647 | 863919 | 8.58 | mg | BPC-157 | 99.562 |
| 2 | 2.753 | 2357 | 0.00 | 0.272 | ||
| 3 | 2.943 | 1446 | 0.00 | 0.167 | ||
| Total | 867722 | 100.000 |
Surplus from our own batch testing · lot 141213-4
97/ 97
Surplus units left
Dr. Predrag Sikiric · University of Zagreb
Lyophilised · 2× L-arginine salt · research use only
Unit price
Shipping
Dispatched in 1–2 business days
Transit time is not guaranteed — the carrier publishes none
Tracking emailed on dispatch
Ships lyophilised and light-protected in plain outer packaging — no product identification outside
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BPC-157 (Body Protection Compound 157) is a synthetic pentadecapeptide — a chain of exactly fifteen amino acids. Its sequence is derived from a protein found in human gastric juice, and it was discovered by Dr. Predrag Sikiric at the University of Zagreb School of Medicine. We supply it as the stable 2× L-arginine salt, built by solid-phase peptide synthesis (SPPS) — not bacterially expressed.
Sequence · 15-mer
GEPPPGKPADDAGLV
Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val
Form
Lyophilised white powder
Stable 2× L-arginine salt
Label content
10 mg per vial
One size — there is no other
Lot
141213-4
The single batch this page describes
This listing is one specific lot, not an open-ended product line. Lot 141213-4 is surplus from our own batch testing: material we characterised in our own laboratory (99.57% purity by HPLC, identity by ESI-MS) and hold beyond what our work needs. The same lot was then sent to an outside laboratory, Janoshik Analytical, which independently measured its purity at 99.562% — report #204156. Both documents are on this page, and the independent one can be checked at the source.
Every figure below is transcribed from COA-141213-4 for this lot. Where a number came from an outside laboratory, the row says so.
| Product | BPC-157 · pentadecapeptideStable form, 2× L-arginine salt |
|---|---|
| Lot / batch no. | 141213-4 |
| CAS no. | 137525-51-0 |
| Sequence | GEPPPGKPADDAGLV15-mer · 2× L-Arg |
| Empirical formula | C₆₂H₉₈N₁₆O₂₂ · 2× C₆H₁₁N₄O₂ |
| Molecular mass | 1418.5 + 2× 174.2Peptide + 2× L-arginine |
| Salt form / arginine content | 2× L-arginine salt — 2 mol eq. |
| Synthesis | Solid-phase (SPPS)Not bacterially expressed |
| Appearance | White powder, lyophilised |
| Net content (label) | 10 mg per vialLabel / specification value |
| Purity — method & value | HPLC (% area) — 99.57%In-house, COA-141213-4, issued 2 July 2026 |
| Identity — method & value | ESI-MS [M+H]⁺ = 1419.9 — conformsIn-house, COA-141213-4 |
| Independent purity | HPLC — 99.562%Janoshik Analytical, report #204156, analysed 21 July 2026 — purity only |
| Storage | Dark and dry, −20 °C |
| Expiry date | 2 May 2027 |
| Use | Research use only — not for human or veterinary use |
A certificate is only worth what you can check. Lot 141213-4 carries our own certificate — and, separately, a report from a laboratory we do not own. Both measured purity by HPLC, and they agree to within 0.01%.
In-house · COA-141213-4
99.57%
Purity by HPLC (% area), lot 141213-4.
Issued by our own Quality Assurance for the exact batch you receive.
Independent · Janoshik Analytical
99.562%
Purity by HPLC — report #204156.
The same product, submitted to a laboratory we do not own and cannot influence.
ZAN9X7GGS7T7
Two laboratories, one number
99.57% · 99.562%
Ours by HPLC, then Janoshik’s independently — the two land on effectively the same point. Neither figure was adjusted to match the other.
Not covered by either document
Sterility · pyrogens
Neither certificate assesses sterility or pyrogen content. The product is not sterile and not pyrogen-free.
What a purity figure is not
A biology claim
Purity is a quality measure — it says nothing about biological effect, and nothing here implies human or animal use.
The storage condition and expiry date below are the two things we state about this lot over time. We publish nothing else about its stability — so treat anything beyond them as unknown rather than assumed.
Storage
Dark and dry, −20 °C
As stated on COA-141213-4
Expiry date
2 May 2027
For lot 141213-4
Supplied as
Lyophilised powder
Sealed vial, light-protected
On arrival
Reconstitution is yours, not ours
General laboratory practice
What we deliberately don’t claim
Testing & results
Attribute by attribute — what each side actually states
Purity is a measure of chemical quality only. It says how much of the material is the stated peptide, and nothing about biological effect.
The right-hand column is a capability we document, not a measured share of vendors. Real comparator batch: Oath Research 2602180021. Sterility, pyrogens/endotoxin and a content assay against the 10 mg label are assessed by neither certificate — the product is not sterile and not pyrogen-free.
FAQ
Restricted Research Chemical
By purchasing you confirm you are a qualified laboratory researcher. For in vitro / in vivo scientific use only.
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