TB-500 is an N-acetylated heptapeptide research material represented as Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH (Ac-LKKTETQ) when identified as the substance associated with CAS 885340-08-9 and an approximate molecular mass of 889 Da. The sequence is derived from the 17-23 region of thymosin beta-4.
TB-500 is not full-length thymosin beta-4. Full-length thymosin beta-4 is a separate 43-amino-acid peptide with a substantially higher molecular mass. Maintaining this distinction across the product title, specifications, COA, sequence, and research copy is essential for scientific accuracy.
Scientific / Analytical Profile
- Sequence: Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH (Ac-LKKTETQ)
- Length: 7 amino-acid residues with N-terminal acetylation
- Relationship: fragment derived from the thymosin-beta-4 17-23 region
- Critical distinction: not the 43-residue thymosin beta-4 parent peptide
- Analytical focus: acetylation state, intact mass, sequence identity, purity, and degradation
Batch-specific identity, purity, and analytical results should be confirmed against the applicable Certificate of Analysis and lot documentation.
Research Use Only. This material is intended solely for controlled laboratory, analytical, and scientific research. It is not for human or veterinary use or administration, diagnosis, treatment, prevention, cosmetic use, food use, or personal use.
