If they're running thrombin inhibition assays or studying clot formation in real time, this is what they'd reach for — it reversibly binds the active site and stops fibrinogen conversion, which is the whole point in cardiovascular work.
We're seeing it at ≥99% by HPLC, that's slightly soluble in water, and the molecular weight comes in at 2295.32 g/mol — most buyers go with the 10mg vial for initial, but our company can do 50mg or 100mg (check lead time on larger sizes).
The sequence is 20 amino acids long — D-Phe-Pro-Arg-Pro-Gly-Gly-Gly-Gly-Asn-Gly-Asp-Phe-Glu-Glu-Ile-Pro-Glu-Glu-Tyr-Leu-OH — and it's a trifluoroacetate salt, which basically means it's pretty stable at 2-8°C after reconstitution, but don't freeze it.
Actually, one thing people miss is that it's not great for oral dosing studies — it's strictly for in vitro or IV work in lab models, so if your buyer's planning gavage experiments, this isn't right fit.
We usually have stock on teh 99% purity grade, roughly 20 days or so for custom batch sizes, and the COA covers HPLC purity and peptide content — no need to chase that seperately.