BPC-157: compound identifiers, research literature, and verified purity
99.497%assayed by HPLC at Janoshik
BPC-157 is a synthetic 15–amino-acid peptide (a pentadecapeptide), CAS 137525-51-0. Ouralus supplies it as a lyophilized powder for laboratory research use only. The Janoshik report assayed 99.497% by third-party HPLC, and that report is published here with a key you can confirm with the laboratory yourself.
Compound identifiers
- CAS
- 137525-51-0
- Molecular formula
- C62H98N16O22
- Molar mass
- 1419.5 g/mol
- Sequence
- Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val
- PubChem CID
- 9941957
Also known asPentadecapeptide BPC 157 · Body Protection Compound-157 · PL 14736
What the research literature covers
The characterization below reflects published research literature only. It describes what that literature examines; it is not a statement about use in people. BPC-157 is investigational research material and is not an approved product.
BPC-157 is a synthetic 15–amino-acid peptide (a pentadecapeptide) whose sequence corresponds to a partial fragment identified in gastric juice. It is supplied as a lyophilized powder for laboratory research use only.
Its sequence carries an unusually high proportion of proline residues, a structural feature commonly associated in the peptide literature with resistance to enzymatic degradation and stability in aqueous solution.
Reported mechanism · literaturePublished research literature describes BPC-157 in the context of angiogenesis and nitric-oxide–system signalling in cell models; the characterization here summarizes that literature only.
- Angiogenesis
- Cytoprotection
- Extracellular matrix
BPC-157 and TB-500, side by side
These two are frequently discussed together. They are different molecules, with different sequences and different molar masses. The table states what each one is and what its latest published report assayed. It does not say which is preferable for any purpose, and nothing on this site does.
| Property | BPC-157 | TB-500 |
|---|---|---|
| What it is | Synthetic 15–amino-acid peptide (pentadecapeptide) | Thymosin beta-4 (TB4), full-length 43-residue peptide |
| Sequence | Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val | Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser-OH |
| CAS | 137525-51-0 | 77591-33-4 |
| Molar mass | 1419.5 g/mol | 4963 g/mol |
| Research areas in the literature | Angiogenesis, Cytoprotection, Extracellular matrix | Extracellular matrix |
| Assayed purity, latest report | 99.497% | 99.402% |
| Verify key | RMAIPH836PXJ | PDXV8UJEL1G4 |
Purity, and how to check it yourself
Purity here is a measurement, not a position. A report from Janoshik, an independent laboratory, is published for BPC-157: assayed purity and net content. We do not test our own material.
- Lot
- Blue Transparent Cap / Silver Crimp
- Analysed
- December 15, 2025
- Assayed purity
- 99.497%
- Testing laboratory
- Janoshik
- Verify key
- RMAIPH836PXJ
Enter that key at janoshik.com/verify and the laboratory returns the report it issued for this batch. You are confirming the result with them, not with us. The full certificate is published as a report image on the BPC-157 certificate page.
We report assayed purity and net content only. We do not run heavy-metal, microbial, endotoxin, or sterility analysis, and we do not claim it anywhere on this site.
Handling and stability
- Lyophilized
- −20°C · 24 months (sealed, desiccated)
Questions
What is BPC-157?
BPC-157 is a synthetic pentadecapeptide (15 amino acids) supplied as a lyophilized powder for laboratory research use only. Ouralus provides it with a third-party HPLC certificate of analysis published where tested.
What is the amino-acid sequence of BPC-157?
The reported sequence is Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val, with molecular formula C62H98N16O22 (PubChem CID 9941957, CAS 137525-51-0).
How is BPC-157 stored?
As a lyophilized powder, sealed and desiccated at −20°C. Ouralus publishes storage conditions for the sealed vial only.
Is BPC-157 third-party tested?
Yes. A report from Janoshik, an independent laboratory, is published for BPC-157; it prints an assayed purity of 99.497%. Its batch field matches the lot currently shipping. The certificate carries verify key RMAIPH836PXJ, which you can confirm directly at janoshik.com/verify.
Is BPC-157 an approved product?
No. BPC-157 is supplied strictly as a research chemical for laboratory research use only. It is not a drug, not a supplement, and not a food, and it is not for human or animal consumption.
Selected literature
- Stable gastric pentadecapeptide BPC 157-NO-system relationSikiric P, et al. · Current Pharmaceutical Design · 2014PMID 23755725 ↗
- BPC 157 and blood vesselsSeiwerth S, et al. · Current Pharmaceutical Design · 2014PMID 23782145 ↗
- Pentadecapeptide BPC 157 and the central nervous systemVukojevic J, et al. · Neural Regeneration Research · 2022PMID 34380875 ↗
- Stable Gastric Pentadecapeptide BPC 157: Prompt Particular Activation of Collateral PathwaysSikiric P, et al. · Current Medicinal Chemistry · 2023PMID 36200148 ↗
Research-literature characterization, provided for research context only. For laboratory research use only. Not for human consumption.