BPC-157 explained: sequence, CAS number and supplied formats
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BPC-157 is a synthetic pentadecapeptide: a chain of 15 amino acids with the sequence Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. Its sequence corresponds to a partial sequence of a protein found in gastric juice. This guide sets out its identifiers, why the sequence matters when checking identity, and the formats in which it is listed.
BPC-157 at a glance
| Compound | BPC-157 |
|---|---|
| Synonyms | Body Protection Compound-157, PL-14736, Pentadecapeptide BPC 157 |
| CAS number | 137525-51-0 |
| Sequence | Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val |
| Length | 15 amino acids (pentadecapeptide) |
| Molecular formula | C62H98N16O22 |
| Molecular weight | Approximately 1419.5 g/mol |
| Supplied form | White lyophilised powder, 10mg per vial |
What does the sequence tell you?
A peptide is defined by its sequence, and the sequence fixes the expected mass. For BPC-157 that mass is approximately 1419.5 g/mol, so a mass spectrometry result on a certificate of analysis should be consistent with that figure.
Two features of the sequence are worth knowing. It contains a run of three consecutive proline residues, which is distinctive. It also contains no cysteine, methionine or tryptophan, the residues most often associated with oxidation in peptides. Storage should still follow the documentation supplied with the product.
What is the difference between a BPC-157 vial, a blend and a set?
BPC-157 appears in several listings, and the format differs in each. The bracketed prefix in a listing title shows how many vials are supplied.
| Listing | Format |
|---|---|
| BPC-157 10mg | One vial, single compound |
| [1V] BPC-157 + TB-500 Blend 10mg | One vial, premixed, 10mg total |
| [2V] BPC-157 + TB-500 Research Duo | Two separate vials, 10mg each |
| [3V] KPV + BPC-157 + GHK-Cu Research Set | Three separate vials |
| Glow Blend 70mg and Klow Blend 80mg | One vial each, premixed, 10mg BPC-157 per vial |
In a premixed blend the ratio of compounds is fixed in one vial. In a set, each compound stays in its own sealed vial. See peptide blends vs separate vials for a fuller comparison.
What should the documentation show?
- The compound name and batch number match the vial label.
- An HPLC purity figure.
- A mass result consistent with approximately 1419.5 g/mol.
- Appearance recorded as a white lyophilised powder.
Batch documents are on the COAs page, and related materials are listed under peptide fragments.
Frequently asked questions
What is the CAS number for BPC-157?
The CAS number for BPC-157 is 137525-51-0.
How many amino acids are in BPC-157?
Fifteen. BPC-157 is a pentadecapeptide with the sequence Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val.
What is the molecular weight of BPC-157?
Approximately 1419.5 g/mol, with the molecular formula C62H98N16O22.
Is PL-14736 the same as BPC-157?
Yes. PL-14736 is a synonym used in the literature for the same pentadecapeptide.
What is the difference between the BPC-157 + TB-500 blend and the duo?
The blend is one premixed vial containing 10mg in total. The duo is two separate vials, one of BPC-157 10mg and one of TB-500 10mg.
All Ascend Research products are sold strictly for laboratory research use only. They are not for human or animal use, and nothing in this article is medical advice.
The Ascend Research team
![[1V] BPC-157 + TB-500 Blend 10mg](http://www.ascendpeptides.com.au/cdn/shop/files/ChatGPTImageMay9_2026at03_00_53PM.png?v=1778302881&width=533)
![[2V] BPC-157 + TB-500 Research Duo (separate vials)](http://www.ascendpeptides.com.au/cdn/shop/files/ChatGPTImageJun17_2026at09_14_35PM.png?v=1781694929&width=533)
