BPC-157: sequence, CAS number and certificate checks

BPC-157 and bepecin identity: the 15-residue sequence, CAS number, formula and molecular weight, with checks for a UK research peptide certificate.

Substantially revised on 3 October 2026 to focus on molecular identity, naming, chemistry, testing and batch documentation.

BPC-157, also written BPC 157 and listed as bepecin, is a 15-residue peptide with the sequence GEPPPGKPADDAGLV. Its chemical reference and a batch certificate answer different questions: the reference defines a molecule; the certificate describes a named sample.

BPC-157 identity at a glance

PubChem CID 9941957 records BPC-157, BPC 157 and bepecin against the 15-residue sequence below. The molecular formula and weight refer to that database structure, without an added counterion or water component.PubChem — BPC-157, CID 9941957 (opens in a new tab)

Molecular reference
FieldReference value
NamesBPC-157; BPC 157; bepecin
SequenceGly–Glu–Pro–Pro–Pro–Gly–Lys–Pro–Ala–Asp–Asp–Ala–Gly–Leu–Val (GEPPPGKPADDAGLV)
CAS number137525-51-0
Molecular formulaC62H98N16O22
Molecular weight1419.5 g/mol, as displayed by PubChem
PubChem — BPC-157, CID 9941957 (opens in a new tab)

What the supplied BPC-157 report establishes

The supplied 5 mg report prints GEPPPGKPADDAGLV and describes a freeze-dried material. It reports an LC-HRMS identity comparison with a qualified reference, while content and related substances are assessed separately. Those statements belong to the sample and lot named in the report.Supplied BPC-157 5 mg report — lot BPC-39-9RD (opens in a new tab)

For example, the report for lot BPC-39-9RD gives 99.43% chromatographic area purity and 5.02 mg measured BPC-157 content. The percentage and the mass are different reported quantities. Keep both alongside the lot identifier rather than converting the purity percentage into a vial mass.Supplied BPC-157 5 mg report — lot BPC-39-9RD (opens in a new tab)

The report also lists water and residual TFA separately. It does not provide a complete salt or hydrate specification. The database formula should therefore remain a molecular reference, rather than a formula assigned to every constituent of the supplied powder.Supplied BPC-157 5 mg report — lot BPC-39-9RD (opens in a new tab)PubChem — BPC-157, CID 9941957 (opens in a new tab)

Product and certificate documents

Sources and further detail

  1. PubChem — BPC-157, CID 9941957 (opens in a new tab)

    Existing dossier record rechecked through PubChem property and identifier data for names, sequence, CAS number, formula and molecular weight.

  2. Supplied BPC-157 5 mg report — lot BPC-39-9RD (opens in a new tab)

    Supplied report: identity wording and analytical fields. Results concern the named sample and lot; this is document transcription, not independent authentication.

Identity sources and supplied documents checked for this revision on 3 October 2026. Report transcription is separate from independent authentication. This article has not undergone independent scientific peer review.

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