Factory Direct TB-500 Peptide | 99% Pure Thymosin Beta-4 for Laboratory Use

You’re looking at the 43-amino acid sequence that gives this peptide its unique binding behavior, and that’s where the real value is—it’s not just about the 99% purity, though that matters for consistent results. We typically see buyers focus on the molecular weight of 4963 g/mol because it tells you how it behaves in solution, and honestly, the lyophilized powder form is easier to handle than pre-mixed vials. 2. What it does is it interacts with actin in a way that’s been studied for tissue repair pathways, but it’s not something you’d use for acute inflammation models—it’s more about long-term cellular migration and differentiation work. Most researchers we supply go with the 10mg vials because of that it’s easier to reconstitute small batches without wasting matrial, and the CAS number 885340-08-9 is what customs usually flags, so have that ready. 3. We usually have stock on the 10-vial packs, but if you need bulk—say 50 vials or more—lead time stretches to about 2-3 weeks (check current availability, though). The storage requirment is straightforward: keep it at 2-8°C, and avoid repeated freeze-thaws because the peptide can degrade after three cycles or so. 4. One thing buyers don’t always think to ask is that the pharmaceutical grade means tighter tolerances on endotoxin levels than research grade, so if you’re doing in vivo work, this is better than reagent grade for that. 5. Anyway, pricing drops noticeably at the 100-vial mark, basically half off per vial compared to single packs, and we provide COAs with each batch—HPLC traces included. 6. Just confirm the MOQ for bulk orders, because sometimes our company have to adjust the lead time if teh batch size exceeds 500 vials, and that’s a real-world limitation you should plan around.