Overview
TB-4 (Thymosin Beta-4) is a naturally occurring 43-amino-acid protein present across nearly all human and animal cell types. First isolated from bovine thymus tissue, it has been identified as a primary regulator of actin polymerization, a process central to cell migration and tissue-repair signaling.
In biochemical research, TB-4 is used in laboratory research models spanning cardiovascular, musculoskeletal, dermal, ocular, and neurological tissue contexts, reflecting its systemic, multi-tissue distribution.
This batch was originally submitted for lab testing as TB-500. The certificate's identity panel found no TB-500 present - the sample matched Thymosin Beta-4 (TB-4) at >99.99% purity instead. We're listing it under the name the lab's own results actually confirm.
| Sequence | Ac-SDKPDMAEIEKFDKSKLKTETQEKNPLPSKETIEQEKQAGES-NH2 |
|---|---|
| CAS number | 77591-33-4 |
| Molecular weight | ~4,963.5 g/mol (C212H350N56O78S) |
| Purity | >99.99% |
| Storage | -20C, protect from light and moisture |
| Appearance | White lyophilized powder |
| Contents | 10 mg |
| Lot | FF-TB50010-260820-001 |