So you’ve got a custom synthesis batch of the 15mg tirzepatide coming through, and what that means in practice is we run it through HPLC and mass spec on every single vial—not just a spot-check from the lot—so you can trust the ≥99.9% purity holds across teh board. We’ve had buyers who needed tighter tolerance than the standdard reference materail for their dose-response work, and frankly, this batch handles that fine.

The CAS is 2023788-19-2, molecular weight sits at 4813.47 g/mol, and it’s a that’s best kept at -20°C protected form light. Most labs we ship to store it in a dedicated freezer drawer, but we’ve seen people leave it on a benchtop for an hour or so and it still reconstitutes fine—just don’t push it.

You’ll get a COA with each order, and we typically retest every six months if stock sits that long. 4. Actually, we’ve had one batch where the purity drifted to 99.7% after a year in storage, and we flagged it before shiping—what it does is give you that extra layer of confidence if you’re running longitudinal studies. This isn’t suited for anything beyond research use, obviously, and we don’t ship it for human consumption—our TDS spells that out clearly.
Lead time is usually 10-15 working days for custom synthesis, but check the exact timeline when you place the order—we’ve had on the 15mg vials during peak demand. The MOQ is 10 vials per kit, but you can customise the kit size if you’re ordering 50 units or more; just mention it in notes.

One detail that catches some buyers off guard is the EC number (200-001-8)—you’ll need that for import paperwork in certain regions, so don’t skip it when you’re filling out the shipping forms.
Our standard MOQ is 10 vials per kit, but we can work with you on custom packaging if you need larger or smaller volumes—just let us know your requirements.
Lead time is usually 2-4 weeks after order confirmation, depending on the batch size. We’ll give you an exact timeline once we lock in the specs.
Yes, every batch comes with a COA confirming ≥99.9% purity by HPLC, plus mass spec data. We can also share additional QC documentation if needed.
Absolutely—our standard is 10 vials per kit, but we offer custom packaging options like different vial sizes or kit counts. Just specify your needs when ordering.
Store them at -20°C, protected from light. The lyophilized powder stays stable for months under those conditions—just avoid repeated freeze-thaw cycles after reconstitution.