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It's isolated from human plasma albumin, originally studied for its role in wound healing and tissue repair, and we've been supplying this particualr form for years now.
Purity runs 99% by HPLC, which matters because even small variations can shift results in copper-binding studies or cell culture work—basically, tighter tolerance than most generic sources manage. You'll get it in a 10mg quantiy sealed in a PP foil bag inside a box, standdard research-grade packaging that keeps moisture out. Storage is straightforward: cool dry place, and pop it in the fridge at 2-5°C once you open it, where it holds for about two years or so. Most buyers go with the 10mg vial for single-use assays, but our company can adjust the format if your lab runs larger batches. Just don't use it in anything clinical or cosmetic—this is strictly research use only, and we're upfront about that limitation.
We usually have stock on hand, but confirm lead time if you need more than 50 units—sometimes production cycles vary.
One thing you might not think to ask: the peptide can chelate copper ions on its own, so if your buffer system has high metal content, you'll want to run a pre-test. (We've seen that trip up a few first-time buyers.) The 2-5°C after opening isn't negotiable—room temperature degrades it faster than people expect, and we don't spin that as a positive, it's just a fact of handling copper peptides.
Anyway, the COA comes with every order, and the SDS is available on request for your lab's safety file.
