Description
TB-500 10mg Pen — Research Peptide Dispensing Format
The TB-500 10mg Pen is a pen-format research preparation of TB-500 (Ac-LKKTETQ, CAS 77591-33-4), supplied as a pre-loaded cartridge for use with the Core Research Reusable Metal Peptide Pen v3 dispensing device. Each pen contains 10mg of TB-500 in a pen cartridge. TB-500 is a synthetic heptapeptide corresponding to residues 17–23 of thymosin beta-4 (Tβ4) — it is not thymosin beta-4 itself. The compound chemistry, analytical specification, and research context are documented on the canonical TB-500 10mg vial product page. Batch-specific analytical documentation is available through the Core Research CoA Portal.
Format Specification
| Attribute | Specification | Notes |
|---|---|---|
| Format | Pen cartridge — research dispensing format | Pre-loaded cartridge for use with Reusable Metal Peptide Pen v3 |
| Compound | TB-500 — Ac-LKKTETQ (CAS 77591-33-4) | Synthetic heptapeptide, residues 17–23 of Tβ4. Not thymosin beta-4 (CAS 61512-21-8) |
| Nominal Mass | 10mg TB-500 | Verify against batch-specific CoA |
| Purity (RP-HPLC) | ≥99.0% | Compound-level CoA; verify against batch documentation |
| Identity (ESI-MS) | Confirmed | Compound-level CoA; verify against batch documentation |
| Compatible Device | Reusable Metal Peptide Pen v3 | Device page |
| Intended Use | Laboratory research dispensing | Research use only; not for human or veterinary administration |
Batch Documentation
Compound-level CoA documentation is available via the Core Research CoA Portal. A compound-level CoA documents the peptide chemistry and does not constitute a finished-format batch record or device QC certificate.
Frequently Asked Questions
Is TB-500 the same as thymosin beta-4?
No. TB-500 (Ac-LKKTETQ, CAS 77591-33-4) is a synthetic heptapeptide corresponding to residues 17–23 of thymosin beta-4 (Tβ4, CAS 61512-21-8). They are distinct molecular entities. Refer to the TB-500 10mg vial page for the full identity documentation.
What is the difference between the TB-500 10mg Pen and the TB-500 10mg vial?
The TB-500 10mg vial contains 10mg of TB-500 in a standard vial format. The TB-500 10mg Pen contains the same compound in a pre-loaded pen cartridge format for use with the Reusable Metal Peptide Pen v3 dispensing device. The compound chemistry and analytical specification are the same for both formats.
Research Use Only. TB-500 10mg Pen is supplied for in vitro laboratory research only. Not for human or veterinary administration.
Research context
The published literature on this material is summarised in the laboratory guides linked below. This record describes the material as supplied: identity, format, analytics, storage and documentation. It does not describe effects, and none should be inferred from the catalogue category.
For Research Use Only
TB-500 10mg Pen is supplied exclusively for in vitro laboratory research. Not for human or veterinary administration. Not an injection device for clinical or personal use.



