Description
TB-500 is a research material commonly used as a reference standard or experimental reagent in controlled laboratory settings. Typical use cases include actin-binding and cell-migration assays, cytoskeletal dynamics work, analytical method development, and non-clinical in vitro workflows.
Two practical notes. First, the sequence contains no cysteine, so there is no disulfide bond to maintain — handling is simpler than for disulfide-containing peptides such as AOD-9604. Second, material is frequently supplied as an acetate or trifluoroacetate salt, which adds mass beyond the 889.01 free-base figure; confirm salt form and peptide content against the lot COA.
Documentation such as COA, HPLC chromatograms, and LC-MS data may be available on a lot basis where applicable. Request documentation by emailing connect@novuspeptides.com with the catalog number and required tests.
This product is sold strictly for laboratory research use only and is not intended for human or veterinary administration. Buyer is responsible for lawful handling, storage, and use in accordance with all applicable regulations.
Technical Summary
- Catalog #:TB-500
- Form:Lyophilized Powder
- Purity:≥ 99%
- Verification:HPLC / LC-MS
- CAS Number:885340-08-9
- Molecular Weight:889.01 g/mol
- Molecular Formula:C38H68N10O14
- Sequence:Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln (Ac-LKKTETQ, heptapeptide, N-acetylated)
- Appearance:White to Off-White Lyophilized Powder
- PubChem CID:62707662
- UNII:QHK6Z47GTG
- Origin:Residues 17–23 of thymosin β4 — the actin-binding motif





