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Sequence & Structure

BPC-157 Sequence, Molecular Weight & Chemical Identity

3 min read•Published 2025-01-19•Quality Peptide USA Research

BPC-157 (Body Protection Compound 157) is a stable synthetic pentadecapeptide originally derived from a protective protein identified in gastric juice. It is one of the most heavily studied research peptides in the soft-tissue and gastrointestinal literature. This guide covers sequence & structure for BPC-157 — written for laboratory researchers sourcing US-synthesized peptides from Quality Peptide USA.

Primary Sequence

The primary sequence of BPC-157 is recorded as: Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. Sequence integrity is verified during release testing using analytical reverse-phase HPLC compared against a reference standard, with mass spectrometry confirming the expected molecular ion.

Molecular Formula and Weight

BPC-157 carries the molecular formula C62H98N16O22 and a calculated monoisotopic weight of approximately ≈ 1419.55 g/mol. These values are essential for accurate molar-concentration calculations during reconstitution and for normalizing dose curves across studies.

Identifiers and Synonyms

CAS Registry: 137525-51-0. Common synonyms include PL 14736, Bepecin. When searching publications, querying both the common and chemical names typically surfaces the broadest body of work.

Structural Notes for Researchers

BPC-157 is supplied as a lyophilized solid with a white to off-white appearance. Researchers should reconstitute in sterile bacteriostatic water unless their assay calls for a specific buffer (e.g., 0.1% acetic acid for hydrophobic peptides). Quality Peptide USA publishes the full chemical-identity card on every product page so that incoming-QC checks can be performed against a known reference.

Research Use Only

All content is for laboratory and in-vitro research contexts only. Not intended to diagnose, treat, or prevent any condition. Not for human or veterinary consumption.

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