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We got your RFQ for the Tirzepatide — the one with CAS 2023788-19-2 — and I've already placed the order. It's a white powder, HPLC purity verified at >98%, and the molecular weight comes in at 4813.45 g/mol. Most buyers go with the 5mg or 10mg vials for their studies, but we're stocked on the 50mg format too if you need it; just confirm lead time (usually 2-4 weeks). And honestly, for dual GIP/GLP-1 receptor work, this one's pretty standard now.
One thing we learned the hard way: you absolutely need to store it at -20°C for long-term stability, or it degrades faster than you'd think. We've had batches sit for over 2 years on the shelf in proper freezers, but if you leave it at room temp for a week, you'll see a noticeable drop in activity — about 5-10% by HPLC. So, basically, keep it cold. It's not suited for any in vivo work unless you're running controlled metabolic disorder research; for cell-based assays, the 98% purity is fine.
Also, the molecular formula is C225H348N48O68 — that's a hefty peptide, so handling it requires some care. We usually have stock, but I'd confirm the SDS beforehand if you're dealing with large volumes. appearance is consistent across batches we've seen: a fine white powder, no clumping, which makes reconstitution easier than some other peptides we've handled. For reference, teh CAS number is 2023788-19-2, and it's also known as LY3298176 if you're cross-referencing old notes.
We ordered 50mg or so to start — enough for a few rounds of — and I went with the standerd packaing form QSC. It's better than reagent grade for this type of research, though I wouldn't push it past 98% purity claims without a fresh COA. One detail you might not think to ask: the powder is hygroscopic, so work quickly when opening the vial; we've had a few labs report moisture issues if they leave it out too long.
Anyway, the price per mg came in lower than what we saw from other suppliers, so it's a decent deal for the specs. Tighter tolerance on purity than most bulk options we've evaluated, and the shelf life is >2 years if frozen. Just make sure your cold chain is solid — that's the one thing that trips people up. Order confirmation should hit your inbox by tomorrow.
Our standard MOQ is 10 grams, but we can accommodate smaller orders for research samples. Contact us for specific quantities.
Yes, every batch comes with a COA showing HPLC purity >98% and other specs. We can also share the HPLC chromatogram on request.
Keep it at -20°C in a freezer, away from moisture and light. Once opened, minimize freeze-thaw cycles by aliquoting into smaller vials.
We typically ship within 3-5 business days after payment confirmation. Larger orders may take up to 10 days depending on stock.
We can pack in smaller vials or specific gram sizes per your request. Just let us know your preferred packaging during order placement.
