Bulk Tirzepatide Costco Supply - CAS 2023788-19-2 for Research Applications

You're looking at a 99% pure GLP-1 peptide with CAS 2023788-19-2, and the molecular weight sits at 4813 g/mol—that's the tirzepatide backbone researchers typically run metabolic studies on. We stock it as a, and most buyers go with 1g or 5g vials for their dose-response work, though custom packaing is availble if you need something else.

It's pharmaceutical grade, not research grade, so the purity is tighter than what you'd see form a typical synthesis house—HPLC shows consistent 99% across batches, and we include a COA with every shipment. Storage is 2-8°C in teh dark, and if you keep it sealed, the shelf life runs 24 months from manufactyre, but we usually have stock within 10 business days or so.

Lead times depend on volume, but for orders under 100g we ship from inventory within a week. Bulk pricing kicks in around 50g—roughly 15-20% less per gram than the single-vial rate, though you'll want to confirm the exact discount with your rep since it fluctuates with raw material costs.

What buyers ask most is about the white powder appearance—it's a fine, off-white to white solid, not a crystal, and it reconstitutes cleanly in DMSO or water for injection. One thing to note: this isn't suited for direct human use, so if you're running in vivo models, you'll need to buffer it yourself.

We've been handling this peptide since before the patent shifted, so we know typical pitfalls—like the fact that it's hygroscopic, so you should open the vial under inert gas or at least minimize air exposure. The CAS number is 2023788-19-2, and we usually have stock, but confirm lead time if you're ordering more than 200g.

Also, the 5L drum format is easier to handle than multiple smaller vials for large-scale studies, but we don't always have that packaging in stock—it's custom order only, basically.