TB500 Peptide Fragment CAS 885340-08-9 99% Purity OEM Service

Goes by TB500 or the fragment name, but CAS 885340-08-9 is what you'll match to your order—white powder, pharmaceutical grade, and we're seeing 99% purity on the HPLC runs.

Molecular weight sits at 889.02 g/mol, which is pretty standerd for this length, and the predicted pKa of 3.20 tells you it's acidic enough to handle in solution if you're buffering right. Boiling point is predicted around 1405°C, so don't expect it to evaporate on you, but density around 1.28 g/cm³ means it packs tight. We usually have stock, but confirm lead time for larger quantities—MOQ is typically 1 gram, and we can do OEM service on the packaing if you need custom labels.

It's a synthetic peptide fragment—Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH—and what it does is basically mimic the active region of thymosin beta-4, so researchers look at it for cell migration and angiogenesis studies. Not suited for anything in vivo with humans, obviously—this is strictly research use only. Store it cool and dry, and you'll get about 20 days or so before we'd recommend using it up if it's reconstituted.

One thing most buyers don't think to ask: the powder can be hygroscopic, so open it in low-humidity glove box if you're weighing out small amounts. We've had a few returns where the vial sat open for ten minutes and picked up enough moisture to clump. Also, the 5mg or 10mg vial sizes are easier to handle than the bulk 100mg for most labs.

Anyway, we ship with a COA —HPLC and mass spec—so you've got the traceability. No fancy claims, just the data and teh white powder.