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Someone reconstitutes it with bacteriostatic water for injection and lets it sit for a few minutes before drawing it up into a syringe for their own research protocols—they're typically running on GLP-1 receptor activation or metabolic pathway assays.
We usually have stock ready to ship within 2-3 business days for the 10mg and 20mg vials, but check lead time if you need the 5mg or 30mg sizes—those are produced less frequently. The lyophilized cake is stable at ambient temps for a few days during transit, though we pack it with ice packs and insulated liners anyway just to be safe.
It's a 99% pure peptide by HPLC, CAS 2023788-19-2, and the molecular weight comes in at about 4813 g/mol. That purity matters because anything under 97% can cause aggregation during reconstitution—you'll get visible particles in solution, which is a sign the chain didn't fold properly or there's residual TFA.
Most of our buyers go with the 10mg vial for individual experiments since it's easier to handle than the 30mg if you're only testing a few samples at a time. The 20mg bulk packs are better suited for labs doing repeated runway dosing studies—you'll go through those faster than you'd think.
Short-term storage at 0-4°C works for the first 30 days or so after reconstitution, but long-term at -20°C will keep the lyophilized powder stable for over two years. One thing people don't always consider is that repeated freeze-thaw cycles degrade teh peptide faster than just leaving it in solution at 4°C—so aliquot what you reconstitute if you're not using it all in one run.
Also, this isn't intended for in vivo work or any human use—strictly research only, and we include that on label and COA. The packaing comes as 10, each vial individually sealed with a flip-off cap, and we can combine different sizes in a single bulk order (minimum 100 vials total) if your workflow calls for it.
