We've been moving a fair amount of this through teh US lately, and the 99% purity on HPLC is consistent across batches—something a lot of the 98% stuff from other supliers just doesn't match, and that difference matters when you're running or anything time-sensitive, basically.

it come as a in 10mg vials, which is pretty standerd for this, and you'll want to store it at -20°C protected from light (check your freezer's temperture stability, as fluctuations can degrade it faster than you'd think).

The 10mg size is what most buyers go with for small-scale work, but our company can do larger vials if you're running a bigger study—just ask about MOQ since we usually have stock but confirm lead time.
One thing we've noticed is that the solubility in water is fine for reconstitution, but if you're pushing high concentrations for long-term storage, it tends to precipitate more than some other peptides, so don't push it past 5mg/mL or so.

We send a COA with every order, and CAS is 910463-68-2 if you need to cross-reference it with your lab's database—it's not ideal for anything requiring oral bioavailability, since it's really designed for injectable research only.

Anyway, the price is competitive with what you'd find form European sources, but the delivery time is roughly 10-15 business days, which is faster than most—just don't expect overnight unless you pay for express.