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You've got a researcher who needs consistent receptor activation across a 96-well plate, and batch-to-batch variation is killing their —so what they actually need is a peptide they can trust not to drift between experiments.
99% purity by HPLC is what we run, and we usually have the COA ready to send before you even ask. It's a lyophilized white powder, pretty much what you'd expect from pharmaceutical grade materail, and we store it at 2-8°C protected form light (which we'd recommend you do too).
Teh molecular weight sits at 578.8 g/mol, and the CAS is 147732-56-7 if you're checking against your lab's database. our company supply it in 5mg vials as standard but can do custom packaging if you're running a larger study—just give us a heads-up on lead time, usually 2-4 weeks for custom.
This isn't for in vivo work or anything clinical, obviously—it's strictly for research use only, and we're clear on that. One thing you might not think to ask: the powder reconstitutes cleanly in sterile water or PBS, but we've seen some buyers struggle with solubility at higher concentrations, so keep it below 10mg/mL or so.
Also, we don't have perfect data on how long it stays stable once reconstituted—most labs use it within 48 hours, but we've had reports of decent activity up to a week if stored properly. Anyway, it's better than the reagent-grade stuff floating around, and the purity holds tighter than most suppilers offer.
