TB500 Pen 10 mg — reference profile

What this compound is

TB500 is a synthetic material related to thymosin beta-4, a naturally occurring actin-binding protein. The synthetic form is supplied as the acetate salt.

Molecular profile

Composition: Synthetic fragment related to thymosin beta-4. Molecular weight ≈ 1880 Da.

Molecular weight is the figure used to confirm identity by mass spectrometry: the measured mass is compared against the value calculated from the sequence, and agreement within instrument tolerance is what establishes that the material is the intended molecule rather than merely a pure one.

What published research has examined

Research interest centres on actin binding and cytoskeletal dynamics, and on tissue models where cell migration is the measured variable. As with several peptides in this class, most published work is preclinical.

This is a description of what has been studied, not a claim about outcomes and not a suggestion that anyone should use it. Research findings in cell culture or animal models do not transfer directly to any other setting.

Format and handling

Pen format. The compound is the same as the vial presentation; the difference is the delivery device, not the chemistry.

Supplied as a white lyophilized powder, stored dry and cold.

Storage conditions and the expiry date on the label describe material kept as specified. A vial left at ambient temperature has not been stored as specified, whatever the date says.

Documentation and verification

Each batch carries a Certificate of Analysis stating purity, identity and the methods used. The outer box carries a printed RVL code which resolves against production records and returns the item, strength, batch number and dates.

The batch number should read the same on the vial, on the box and on the certificate. Where it does not, treat the material as undocumented until the discrepancy is explained.