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We needed something with tighter tolerance than most of what's on the market for this phase of testing, and the HPLC purity reading over 99% was the baseline we couldn't budge on.
What it does is sit at -20°C for long-term storage, and the shelf life is supposed to hold for more than two years if you keep it there—usually our company have stock, but confirm lead time before ordering bulk.
So the vial sizes go form 5mg up to 30mg, and most buyers go with the 10mg or 15mg depending on their dosing setup, though the 20mg is pretty much the sweet spot for our lab's typical runs.
It's not suited for anything beyond research use—that's a hard line, no clinical applicaion here, and CAS 2381089-83-2 matches the molecular weight you'd expect for retatrutide, give or take a few grams per mole.
Also, the powder comes as a white flakey solid that reconstitutes fine in sterile water, but I've seen some batches clump if vial isn't sealed properly after first use—so check teh packging for that rubber stopper seal.
Anyway, we usually get a COA with each shipment, and the HPLC trace is included, but I wouldn't rely on it for anything past the 12-month mark without running your own QC.
