Solo para uso en investigación de laboratorio. No es para consumo humano. No es para uso clínico ni terapéutico. No evaluado por la FDA.
Comparación de investigación
BPC-157 vs. TB-500
BPC-157 is a defined synthetic pentadecapeptide (GEPPPGKPADDAGLV; C62H98N16O22, 1419.56 g/mol, CAS 137525-51-0). TB-500 is a Thymosin β-4-derived peptide: the name is used for either the Ac-LKKTETQ actin-binding fragment (~889 Da) or full Thymosin β-4 (~4963 Da), so its exact identity is set lot by lot rather than by a single CAS number.
| Atributo | BPC-157 | TB-500 |
|---|---|---|
| Peptide class / structure | Linear pentadecapeptide | Thymosin β-4-derived peptide — Ac-LKKTETQ fragment or full Thymosin β-4 |
| Sequence origin | Partial sequence of a protein isolated from gastric juice | Thymosin β-4 (actin-binding protein) |
| Sequence | GEPPPGKPADDAGLV | Ac-LKKTETQ (fragment form) or full Thymosin β-4 |
| Length (residues) | 15 aa | 7 aa (Ac-LKKTETQ fragment) or full-length Thymosin β-4 |
| Molecular formula | C62H98N16O22 | Not assigned — depends on the form in the lot |
| Molecular weight | 1419.56 g/mol | ~889 Da (fragment) or ~4963 Da (full Thymosin β-4) |
| CAS number | 137525-51-0 | Not assigned — depends on the form in the lot |
| Supplied as | Lyophilized powder, 10 mg vial | Lyophilized powder, 10 mg vial |
| COA on file | Yes (Kovera Labs) | Not yet |
| Also found in | Wolverine, GLOW and KLOW blends | Wolverine, GLOW and KLOW blends |
Preguntas frecuentes
Why doesn't TB-500 have a single molecular weight or CAS number?+
"TB-500" is used for two different Thymosin β-4-derived entities: the Ac-LKKTETQ fragment (~889 Da) and full Thymosin β-4 (~4963 Da). The Certificate of Analysis for a lot is what settles which one it contains. BPC-157, by contrast, is a single defined sequence with CAS 137525-51-0.
Are BPC-157 and TB-500 available in one vial?+
Yes. The BPC-157 / TB-500 Blend (Wolverine) holds 5 mg of each in a 10 mg vial, and both also appear in GLOW (with GHK-Cu, 70 mg total) and KLOW (with GHK-Cu and KPV, 80 mg total).
Are both supplied lyophilized?+
Yes — both are supplied as lyophilized powder. Store unopened vials at −20 °C for the long term, protected from light and moisture, and avoid repeated freeze–thaw once in solution.