Getting consistent results in GLP-1 receptor studies often comes down to the raw materail's purity, and if you've been dealing with batch-to-batch variability, that's a real headache.
We've found that running at >99% by HPLC pretty much eliminates the side reactions you'd otherwise see, so your stay clean and repeatable without extra purification steps.

It's a white powder with that 403.31 g/mol molecular weight, and the 24-month shelf life is solid as long as you keep it at 2-8°C in teh dark—usually 20 days or so for standdard shippng.
Most buyers go with the 1g or 5g vial for smaller metabolic studies, but our company can do 10g if you need a bigger run; just confirm lead time since stock fluctuates.

One thing to watch: this isn't suited for direct in vivo dosing without formulation work—it's an intermediate, so you'll need to handle salt form and excipients yourself.
We've got the COA and HPLC data for every batch, and the last one showed 99.3% with no detectable impurities above 0.1%, which is tighter tolerance than most generic suppliers offer.