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Actually went with the pharmaceutical-grade version because we've had issues with lower-purity peptides throwing off our longer-term metabolic assays, and the HPLC shows ≥99% which is tighter than most reagent grades we've tested.
CAS is 2023788-19-2, molecular weight is roughly 4113.6 g/mol — that GLP-1 agonist with the 94% sequence homology and albumin binding is what makes it last so much longer in vivo compared to the standard ones.
We're running it on the glucose-stimulated insulin secretion side and also checking whether it suppresses glucagon as consistently as the literature claims, but it's not great for acute dosing studies where you need fast clearance — the half-life is just too long for that.
it come as a white to off-white powder, soluble in water, and they send it in 10mg vials with 10 vials per kit — storage is -20°C away form light, which is standerd, but the MOQ was only 10 vials so we didn't have to overcommit.
Lead time was about 20 days or so (usually 2-4 weeks) and COA came with each batch, which is what we always ask for since some suppilers skip the HPLC trace.
One thing that caught me off guard — teh vials have a really small headspace, so reconstituting without foaming takes a bit more care than the larger ones we're used to handling.
Our MOQ is 10 vials — that's one full kit. So you're looking at a minimum of 10 vials per order.
Lead time is usually 3-5 business days after payment confirmation. For larger orders we might need a couple extra days, but we'll keep you posted.
Yes, we include a COA with every batch. It confirms the ≥99% purity by HPLC and other specs like appearance and solubility.
Store it at -20°C in a freezer, and keep it protected from light. That'll maintain stability for long-term use.
We can discuss packaging options for larger volumes, but standard is 10mg per vial with 10 vials per kit. Custom labeling might be possible depending on quantity.
