Actually, if you've been working with standerd offerings on the market, you already know most suppliers push 98% purity as if it's a win — we've got 99% consistently, and that extra percent tightens your where it counts for metabolic studies.

Typically, we see researchers ordering in teh 10mg vials because they're easier to handle in a cold-chain workflow, and we pack those as 5, 10, or 15mg per vial in a box of ten (usually 2-4 weeks lead time on larger MOQs, but single boxes ship same day).

The white powder is pretty much what you'd expect, but what doesn't show up on the datasheet is the CAS 102-48-7 materail we run — give or take 0.5% on every HPLC COA we send, and we've had exactly zero on this batch in six months.
So, don't use this for anything but research — it's not suited for human grade, and we're clear on that in the SDS — but if you're running in vitro assays or animal dosing protocols, the tolerance here is better than most generic Chinese peptide suppilers floating around.

One thing that catches new buyers off guard: store it strictly at 2-8°C in the dark, or you'll see degradation within 30 days or so regardless of that 99% initial purity.