BPC-157: identity, research literature, and verified purity
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 lot currently shipping assayed 99.497% by third-party HPLC at Janoshik, and that certificate is published here with a key you can confirm with the laboratory yourself.
Identity and registry data
- 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 animal and cell models; the characterization here summarizes that literature and is not a statement about outcomes in humans.
- Tissue repair models
- 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 current lot 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) | Synthetic N-acetylated 7–amino-acid fragment |
| Sequence | Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val | Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH |
| CAS | 137525-51-0 | 885340-08-9 |
| Molar mass | 1419.5 g/mol | 889 g/mol |
| Research areas in the literature | Tissue repair models, Angiogenesis, Cytoprotection, Extracellular matrix | Tissue repair models, Extracellular matrix |
| Assayed purity, current lot | 99.497% | 99.402% |
| Verify key | RMAIPH836PXJ | PDXV8UJEL1G4 |
Purity, and how to check it yourself
Purity here is a measurement, not a position. The lot currently shipping was analysed by Janoshik, an independent laboratory, by HPLC for identity and assayed purity. 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 PDF on the BPC-157 certificate page.
We report HPLC identity and assayed purity 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)
- Reconstituted
- 2–8°C · weeks (research handling)
Reconstitution solvent: sterile bacteriostatic water. Reconstitution parameters are a laboratory-handling matter determined by the researcher; no in-vivo or human-use parameters are provided. The concentration arithmetic for a reconstituted research solution is available in our reconstitution calculator.
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. Storage and reconstitution beyond that are laboratory-handling matters for the researcher.
Is BPC-157 third-party tested?
Yes. The lot currently shipping was analysed by Janoshik, an independent laboratory, by HPLC for identity and assayed purity, and assayed 99.497%. 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
- The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migrationPMID 21030672 ↗
- Stable gastric pentadecapeptide BPC 157-NO-system relationPMID 23755725 ↗
- BPC 157 and blood vesselsPMID 23782145 ↗
- BPC 157 and Standard Angiogenic Growth Factors. Gastrointestinal Tract Healing, Lessons from Tendon, Ligament, Muscle and Bone HealingPMID 29998800 ↗
- Gastric pentadecapeptide body protection compound BPC 157 and its role in accelerating musculoskeletal soft tissue healingPMID 30915550 ↗
- Stable Gastric Pentadecapeptide BPC 157 and Wound HealingPMID 34267654 ↗
- Pentadecapeptide BPC 157 and the central nervous systemPMID 34380875 ↗
- Stable Gastric Pentadecapeptide BPC 157 and Striated, Smooth, and Heart MusclePMID 36551977 ↗
- Stable Gastric Pentadecapeptide BPC 157: Prompt Particular Activation of Collateral PathwaysPMID 36200148 ↗
Research-literature characterization, provided for research context only. For laboratory research use only. Not for human consumption.