TB-500 Beta-4 Peptide Powder 99% Purity for Pharmaceutical Research

We keep 10-vial boxes in stock at 2-8°C basically all teh time now, but shiping timeline depends on your location and whether you need dry ice or just gel packs for the cold chain—roughly 48 hours if everything’s ready to go, maybe 20 days or so for international with customs (confirm lead time before ordering).

You’ll get 10 at 10mg each, white powder, and what it does is it’s the synthetic Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH fragment—TB-500, CAS 885340-08-9—with 99.0% minimum purity by HPLC. Solubility’s slightly tricky in water or methanol; most buyers go with a dilute acetic acid buffer instead of fighting the lower pKa around 3.20. Shelf life is 24 months if kept sealed and cold, but don’t freeze-thaw more than once or you’ll see aggregation in solution.

It isn’t suited for anything in vivo or any clinical applicaion—strictly pharmaceutical research on inflammation pathways or muscle injury mechanisms—and the MW of 889.02 g/mol means it’s small enough for standerd HPLC columns but the boiling point prediction of 1405±65°C is pretty much irrelevant for lab handling since you’ll never take it that high.

Actually, one detail buyers don’t think to ask: density spec of 1.281±0.06 g/cm³ is predicted, not measured, so don’t rely on it for volume-based dosing—we always see variation in powder packing anyway. Also, the 10mg vial format is better than our 1mg bulk options for reproducibility, since you reduce freeze-thaw cycles by opening one vial per experiment.

So we ship cold, it’s white powder, MOQ is one box (10 vials), and COAs come with every batch. That’s really it.