Account
Inquiry
Researchers reconstituting this for in vitro binding assays typically need to account for the 4,813 g/mol molecular weight when calculating molarity—it's roughly 0.208 µmol per mg, so a 10mg vial gives you about 2.08 µmol total peptide, which matters when you're running at low nanomolar concentrations.
The C20 fatty diacid side chain at Lys20 is what really extends the half-life in plasma stability assays, but for cell-based work you'll want to pre-dissolve in a small volume of DMSO or acetonitrile (usually 50-100 µL) before diluting into your assay buffer, because the lyophilized powder can be stubborn in straight PBS.
We're seeing most UK buyers go with the 10mg vials for single-use reconstitution, though some labs order 50mg custom sizes and aliquot into smaller working stocks—just be aware that freeze-thaw cycles degrade the peptide faster than you'd expect, so we recommend storing at -20°C protected form light and using within 30 days after reconstitution if you've added a stabilizer like 0.1% BSA.
Purity runs ≥99% by HPLC with a COA for every batch; the CAS is 2023788-19-2, and we've had a few buyers ask about teh Aib modifications at positions 2 and 13, which basically improve resisance to enzymatic cleavage compared to native GLP-1 analogs—that's why it's better than liraglutide for longer-term studies.
It's not suited for oral gavage work because the peptide gets destroyed in the GI tract, and we usually have stock in the UK warehose, but confirm lead time if you're ordering more than 50 vials—custom packaing (say, 5mg per vial instead of 10mg) takes an extra 7-10 days or so.
One thing nobody mentions: lyophilized cake can look slightly off-white or have a faint yellow tint depending on residual TFA from synthesis, but that doesn't affect purity—it's just a quirk of the counterion exchange during final purification.
We usually start at 10 vials for wholesale orders, but we can be flexible if you need a smaller trial batch—just reach out and we'll see what works.
Yes, every batch comes with a CoA confirming ≥99% purity by HPLC. We also keep batch records for traceability if needed.
Absolutely—custom sizes are available. Just let us know the milligram amount per vial you're looking for, and we can adjust packaging accordingly.
Keep it at -20°C in a freezer, away from light. The white powder is stable under those conditions for extended periods—just avoid repeated freeze-thaw cycles.
We usually ship within 3-5 business days after payment clears. For larger custom orders, it may take a bit longer—about 7-10 days—but we'll confirm timing upfront.
