TB-500

TB-500 is the name commonly used for synthetic thymosin β4, a 43-amino-acid peptide found throughout mammalian tissue. The batch we supply is the full thymosin β4 sequence, as confirmed on its certificate of analysis, and comes as a lyophilised powder in 5mg or 10mg vials.

Specifications

• Compound: Thymosin β4 (TB-500)
• Length: 43 amino acids, N-terminally acetylated
• Molecular formula: C212H350N56O78S
• Molecular weight: 4963.49 g/mol
• CAS number: 77591-33-4
• Appearance: White lyophilised powder
• Pack: 5mg or 10mg in a sealed glass vial
• Storage: Store at 2–8°C, or at −20°C for long-term storage, sealed, dry and away from light

Research context

Thymosin β4 is a major actin-sequestering protein, and is studied in research on cell migration, actin dynamics and wound-healing models. It has been investigated in laboratory and animal studies of tissue regeneration, including cardiac and corneal tissue. Most published work is preclinical. Also available as a BPC-157 / TB-500 blend.

Quality and testing

Each batch comes with the manufacturer's certificate of analysis. This batch (certificate 026-T81-TSX) tested at 99.40% purity by HPLC, with identity confirmed by mass spectrometry, a peptide content of 85.38% and a mass balance of 98.19%. The full lab results are shown below, with the certificate to download.

Delivery

Orders ship by Royal Mail: Tracked 48 (£3.99), Tracked 24 (£4.99) or Special Delivery guaranteed by 1pm (£10.99), with free Tracked 48 on UK orders of £100 or more. Mix and match any peptides for bulk savings: 10% off 3 vials, 15% off 5 and 20% off 10.

FAQs

What purity is this batch?
The current batch of TB-500 tested at 99.40% by HPLC, with identity confirmed by mass spectrometry. The full certificate of analysis, number 026-T81-TSX, is shown below and can be downloaded.

Is this a fragment or full thymosin β4?
It is the full 43-amino-acid thymosin β4 sequence. The name TB-500 is sometimes used for shorter fragments, so check the certificate: ours shows the full sequence and a molecular weight of 4963.49 g/mol.

How should it be stored?
Keep the sealed vial at 2–8°C for short-term storage or at −20°C for long-term storage, away from light and moisture. Let a cold vial reach room temperature before opening it.

Is this the same as TB500?
Yes. TB-500 is also written or searched for as TB500, TB 500, TB-4, Tβ4 or thymosin beta-4. All of these names refer to this thymosin β4 peptide.

See more in tissue-repair research peptides.

For laboratory research use only. Not a medicine. Not for human or veterinary use, and not for use in food, drugs, cosmetics or household products. Sold to qualified researchers who confirm research use at checkout.