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So you're probably looking into GLP-1 agonists for metabolic research, and this is the one everyone's been talking about lately—it's got that dual action on both GIP and GLP-1 receptors, which is pretty much what sets it apart from the older single-target peptides.
It comes as a white powder, and we're seeing 99% purity or better on the HPLC, which for most labs is more than tight enough for dose-response work or binding studies. molecular weight is 4813, and teh CAS is 2023788-19-2 if you need it for your inventory system. Storage is straightforward: keep it at 2-8°C, protected form light, and it'll hold up fine for a good while—we usually have stock, but confirm lead time if you're ordering more than 50 units or so.
What you get when you order is a sealed vial with the lyophilized powder, and we include a COA with every lot. Actually, we've had a few buyers ask if it's reconstituted already—it's not, you'll need to add your own sterile water or buffer. One thing I'd mention: it's not suited for in vivo work unless you're set up for that, and even then, it's labeled for research use only, so don't expect clinical-grade handling protocols.
5mg or 10mg vials are the most common sizes we move, but our company can do bulk if you're running a larger study. The 5L drum is easier to handle if you're doing multiple assays, but the smaller vials are better if you're just getting started. Most buyers go with the 10mg, actually—it's a good middle ground for reconstitution volumes.
Anyway, the purity spec matters because even a few percent drop can shift your EC50 values noticeably, especially if you're comparing it against other peptides. We've had labs send back samples that were 98.5% because their assay was that sensitive—so the 99% threshold is not just marketing.
