Compound comparison
BPC-157 vs TB-500
As of 2026-09-08, DMV Research compares BPC-157 (CAS 137525-51-0) and TB-500 (CAS 77591-33-4) across 13 identity and analytical axes, backed by 2 published third-party certificates of analysis, for laboratory research use only.
This page sets two research compounds beside each other on the facts DMV Research can evidence: registry identity, sequence, the assay each lot was tested by, and what the catalog currently lists. It states what each compound IS, not what it does, and it does not put one ahead of the other — both are supplied for laboratory research use only.
For laboratory research use only. Not for human or veterinary use. Not for diagnostic or therapeutic use. Not a drug, food, cosmetic, or dietary supplement.
BPC-157 and TB-500, side by side
Every row is read from a published record — the compound guides for identity, the per-lot certificates for the analytical results, and the live catalog for price. A dash means the fact is not published for that compound, not that it is zero.
| Axis | BPC-157 | TB-500 |
|---|---|---|
| Structural class | Synthetic Pentadecapeptide | Synthetic Peptide Fragment |
| CAS number | 137525-51-0 | 77591-33-4 |
| Sequence length | 15 residues | 23 residues |
| Molecular formula | C62H98N16O22 | — |
| Also known as | Body Protection Compound 157, Bepecin, PL 14736 | TB-500 peptide, Thymosin Beta-4 fragment, TB500, Tβ4 |
| Analytical method | Purity & Quant (HPLC) | Blend Purity & Quant (HPLC) |
| Reported purity | 99.96% | 99.83% |
| Analysing laboratory | ILS Laboratories, San Diego, CA | ILS Laboratories, San Diego, CA |
| Lot on record | LOT-2026-001, analysed June 13, 2026 | LOT-2026-001, analysed June 29, 2026 |
| Formulation | Powder · 10 mg label claim · 10.67 mg measured net content | Lyophilized powder · 10 mg label claim · 10.72 mg (BPC-157 5.47 mg / TB-500 5.25 mg) measured net content |
| Catalog availability | Listed as a standalone product | No standalone listing. Supplied within the BPC-157 + TB-500 blend, which carries its own per-lot certificate. |
| Current price | $65.00 USD | — |
| 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 |
Verify these figures
The purity, method, lot and date rows above are transcribed from certificates DMV Research publishes in full. Open the BPC-157 certificate record and the BPC-157 / TB-500 certificate record to read each lot's own document, or the full certificate index for every lot currently held.
Identity data — CAS number, molecular formula and sequence — is the same data the BPC-157 and TB-500 guides publish, and the Research Use Only scope that governs both listings is stated in full.
Frequently asked questions
What is the structural difference between BPC-157 and TB-500?
They are different molecules with separate CAS registrations: BPC-157 is a 15-residue synthetic pentadecapeptide (CAS 137525-51-0), and TB-500 is a 23-residue acetylated synthetic fragment related to Thymosin Beta-4 (CAS 77591-33-4).
Do BPC-157 and TB-500 share a CAS number?
No. BPC-157 is CAS 137525-51-0 and TB-500 is CAS 77591-33-4. A CAS registry number identifies one substance, so two different numbers are two different substances.
How is each compound analysed before it is listed?
Both are assayed by HPLC for purity and quantitation at ILS Laboratories (San Diego, CA), and the resulting per-lot certificate is published in full on this site rather than summarised.
Is TB-500 listed on its own at DMV Research?
No. TB-500 currently reaches the catalog inside the BPC-157 + TB-500 blend, lot LOT-2026-001, which carries its own published certificate of analysis.
Which lots of each compound have published certificates?
BPC-157 lot LOT-2026-001, analysed June 13, 2026, and the BPC-157 + TB-500 blend lot LOT-2026-001, analysed June 29, 2026. Both certificates are published as full PDFs.
Does this page say which compound to pick?
No. It compares registry identity, sequence, analytical results and catalog availability only. Both compounds are supplied for laboratory research use only, and this site publishes no guidance on use, effect, or suitability for any application.
Research use only
All products are intended for laboratory and research use only (RUO) and are not for human consumption, ingestion, or any in-vivo use.
The statements on this page have not been evaluated by the FDA. For laboratory research use only. Not for human or veterinary use. Not for diagnostic or therapeutic use. Not a drug, food, cosmetic, or dietary supplement.