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We've been sourcing TB-500 for about three years now, and the buyers who come back consistently are usually running wound healing or angiogenesis studies, often in dermal or soft tissue models. One guy I deal with actually switched from a competitor's batch because he kept getting inconsistent results in his endothelial cell migration assays, and our materail sorted that out pretty much immediately.
The purity is listed at 99.0% minimum by HPLC, which for a peptide fragment derived from thymosin β4 is tighter than some of the generic research grades floating around—we've seen COAs from other supliers come in at 97% or so, and that extra 2% can throw off in longer experiments. it come as a white powder, pharmaceutical grade, with a molecular weight of 889.02 g/mol, and the CAS is 885340-08-9 if you need to cross-reference your own TDS. One thing I always mention is the pKa value of 3.20±0.10—it matters for reconstitution buffers, especially if you're working at physiological pH ranges.
When you order, what you get is the 10mg per vial in a box of ten vials, and we usually have stock, but confirm lead time if you need more than 50 units or so—sometimes teh 10-vial boxes run short in Q4. The shelf life is 24 months if stored in a cool, dry place, and we include a COA with every batch, though I'd recommend doing your own reconstitution test on arrival because (usually 2-4 weeks) the powder can clump slightly if seal got compromised in transit.
It's not suited for anything involving oral administration or in vivo dosing without proper formulation—this is strictly for research, and we don't recommend it for any clinical work or for use in food animals. I've seen buyers try to use it in cell-free systems and get frustrated because the peptide's activity depends on proper folding, which requires a reducing enviroment.
Anyway, the boiling point is predicted at 1405.0±65.0 °C, but honestly, nobody's boiling this stuff—the density is 1.281±0.06 g/cm³, which matters if you're calculating molarity for your stock solutions. Most buyers go with the 10mg vials because of that it's easier to aliquot, but our company can do bulk powder if you're running high-throughput screening and have the equiment to handle it.
We typically require a minimum order of one box, which contains 10 vials of 10mg each. If you need less, just reach out and we can discuss.
Orders are usually processed within 1-2 business days, and shipping takes 5-10 days depending on your location. We'll confirm the exact timeline when you order.
Yes, we include a COA with every batch, detailing the HPLC purity results. Just request it with your order and we'll send it along.
We can adjust packaging for bulk orders, but standard is 10mg per vial and 10 vials per box. For custom requests, let us know the volume and we'll see what we can do.
Store it in a cool, dry place away from direct sunlight, ideally between 2-8°C. Keeping it sealed and dry will preserve the full shelf life.
