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Been in game long enough to know nothing stalls a study quite like chasing purity issues, so we keep our semaglutide consistently above 99.9% by HPLC—, tighter tolerance than a lot of what I’ve seen floating around, with a molecular weight of 4113.58 g/mol and teh CAS number 910463-68-2 if you’re logging batches in your system.
Basically, we’re looking at a GLP-1 receptor agonist here, 187 carbon atoms and 291 hydrogens crammed into that peptide chain, though what it really means for you is clean results in metabolic or appetite studies without unexpected peaks in your HPLC runs, in most cases, anyway.
About 20 days or so for standerd stock—1 mg, 2 mg, and 5 mg per vial are our go-to sizes, but we do custom fills if you’re running a larger cohort and don’t want to reconstitute fifty vials at once, so just give me a rough headcount and we’ll quote it.
It isolates best at -20°C and keeps tight against light—and here’s a ding a lot of folks miss if they’re new to lyophilized peptides: once you’ve reconstituted with sterile water or PBS buffer, use it within a couple days or you’ll see degradation; we usually stock COA-backed matrial, but confirm lead time if you’re planning a bulk order after 3 p.m. Eastern.
One pro tip: this compound hates prolonged room temp exposure, so if you’re shipping to a lab with a warm receiving dock, they should plan to move it straight to cold storage, or at least set expectations—most buyers go with the 5 mg vials for flexibility over the 1 mg ones because fewer vials to track in the freezer.
Also, we’ve had a few people ask about solubility beyond just water or PBS buffer, and honestly, I’d stick with what’s tested—running it in ethanol will mess with your osmolality, so it’s really best kept for research buffers or saline for metabolic or glucose studies, not that one-off custom protocol you might be noodling over.
We can start with as low as 10 vials for a small research batch, but bulk orders typically kick in at 100+ vials. MOQ varies depending on the vial size you choose.
Yes, we include a CoA from our lab with every shipment that shows the HPLC purity result. Just request it when placing your order and we’ll attach it.
Custom vial sizes like 10mg usually add 5-7 business days to our standard 3-day lead time. So expect around 8-10 days total from order confirmation.
Strictly -20°C for long-term storage to maintain stability. A standard freezer works, but avoid freeze-thaw cycles—keep them protected from light too.
Yes, it dissolves easily in water or PBS buffer at neutral pH. We recommend reconstituting just before use and discarding any leftover solution.
