We've got your RFQ here and can confirm the lyophilized powder is ≥99% purity by HPLC, which is pretty much what you'd expect for GLP-1 work — the CAS is 2381089-83-2 if you're cross-referencing.
Most buyers go with the 5mg or 10mg vials for typical in vitro assays, but we also stock 15mg if you're running larger dose-response studies — just keep in mind it's not suited for anything beyond research use only.

Storage is straightforward: keep it at -20°C for long term and it'll hold for 2 years or so, but we usually have stock on hand so confirm lead time if you need it faster.

Packaing comes 10, and we've found the 5mg format is easier to handle for reconstitution — you'll get a COA with each batch, and we can provide TDS and SDS on request.

Actually, one thing buyers don't always ask: teh lyophilized cake can be a bit fragile during shipping, so we double-box it with insulation — that's just a fact of handling peptides, not a flaw.
Anyway, for ordering, the MOQ is 1 box (10 vials) per strength, and pricing varies by quantiy — roughly $45 per vial for the 5mg, $75 for the 10mg, or $110 for the 15mg, give or take depending on volume.