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.
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 AbsoluteBioLab 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 AbsoluteBioLab 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 |
Research Context
TB-500 (Ac-LKKTETQ) is a synthetic heptapeptide corresponding to residues 17–23 of thymosin beta-4. Research using TB-500 and Tβ4-derived sequences has examined actin-binding properties, angiogenesis, and cell migration in in vitro and animal models. For the full research context, analytical specification, and scientific references, refer to the canonical TB-500 10mg vial product page. For a comparison of TB-500 and thymosin beta-4, refer to the TB-500 vs Thymosin Beta-4 Research Comparison.
Batch Documentation
Compound-level CoA documentation is available via the AbsoluteBioLab 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.
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