Manufacturer of Semaglutide Peptide Tirzepatide Powder for Weight Loss Research

We're running every batch through HPLC and mass spec before it leaves—purity holds at 99% or better, and we actually reject anything that drifts below that threshold. The CAS is 2023788-19-2, but what matters more is that the peptide chain integrity stays intact through lyophilization, so you're not dealing with truncated fragments. Most buyers go with the 5mg vials for dose-response work, though our company can do 10mg if you need the higher load per vial.

It's soluble in DMSO pretty easily, but we usually have stock on the -20°C storage condition, and the shelf life runs over two years if you keep it dry. We've had a few labs push it to three years with no noticeable degradation on the COA. That said, if you're running long-term studies, we recommend a retest at 18 months—it's just good practice. The molecular weight is 4813.45 g/mol, and the powder itself is a fine white lyophilized cake, not a loose powder that clumps.

The 10 packaging is standard for research use only—we don't recommend repackaging in-house because any moisture exposure can knock the purity down. One thing a buyer might not think to ask is that we keep batch-to-batch variation under 0.3% by HPLC area percent, which is tighter than the typical ±1% most suppilers claim. Actually, we've seen some cheaper sources ship materail with 97% purity and call it "pharmacy grade," but that's not what we do.

What it's not suited for is any formulation work that requires aqueous stability beyond a few hours—it degrades in water faster than DMSO, so plan your reconstitution accordingly. We don't provide SDS for every single order, but it's avaliable on request. Also, MOQ is one box of 10 vials, and lead time is typically 5-7 business days, though we sometimes have it ready in 3. So if you need a rush, just ask.

Batch consistency is our main focus—we hold a full retest policy for any lot that shows more than 0.5% deviation form the COA specs, and we'll ship a replacement within 10 days or so. The pharmacy grade designation means the starting materials meet EP or USP monographs, but we don't certify it for human use, obviously. And one odd detail: the powder sometimes has a slight electrostatic charge when you open the vial, so use an antistatic spatula if you're weighing out smaller aliquots.