We needed a high-purity GLP-1 receptor agonist for our metabolic disorder studies, and this semaglutide batch came in at >99.9% by HPLC—tight enough for dose-response work without worrying about impurities skewing the data. The lyophilized white powder is pretty standard for this CAS number (2023788-19-2), and storage at -20°C or below is non-negotiable if you want it to stay stable beyond a few months. Most buyers go with the 10-vial box format, which is fine for our current scale.

It's primarily for type 2 diabetes and weight control mechanism research, not for anything clinical or in vivo without proper approvals—we're strictly in the lab with this one. The molecular weight is 4113.58 g/mol, which matters when you're calculating molar concentrations for cell-based assays, and the extended half-life of the GLP-1 analog is actually what makes it useful for chronic exposure studies. We've used similar peptides before, and the reconstitution is straightforward if you follow the standard protocol.

Lead time is usually 2-3 weeks form order, but our company have stock on hand for this batch so it'll ship faster—confirm with the suppiler though, because sometimes they run out of the 10mg vial size and you get stuck waiting. The COA comes with every batch, and they'll do private labeling if you need it, but we don't bother with that for internal use. Also, lyophilized form is easier to handle than pre-mixed solutions, since you can reconstitute at the concentration you need.
One thing that caught me off guard is that the powder can be slightly hygroscopic if you leave it out too long, so we always aliquot it immediately after opening—something you'd only know after handling a few vials. It's not suited for high-throughput screening where you need a ready-to-use liquid, but for targeted metabolic pathway work it's fine. The 2mg to 50mg vial options are availble, but we usually just order the 10mg size because of that it's good middle ground for our typical assay volumes.

Anyway, the price was competitive compared to other suppilers offering similar purity, and we've had good luck with their previous batches for other peptides. The CAS number is specific to semaglutide, not the triple agonist you mentioned in the request line, but for GLP-1 analog research this covers what we need. We'll run our own HPLC verification when it arrives, just to be safe.