Bulk Peptide Supply - High Purity Pharmaceutical Intermediates for Research

We've got these in stock right now for most of the common ones—the Empagliflozin and Liraglutide intermediates usually ship within a week, but the Retatrutide might take 20 days or so depending on demand. They come in glass vials with an alumnum seal, and we pack them with ice packs during transit (check lead time for internaional cold chain shipping).

What it does is provide the backbone for a bunch of peptide-based drug candidates, and the purity is held at 99% or better by HPLC, which matters because even small impurities can throw off your. The molecular weight range is roughly 400 to 4500 Da, so you're covering everything from small fragments to full-length peptides.

Most buyers go with the 10mg or 50mg vial sizes, but our company can do custom packaing if you're running a large assay. It's not sterile, so don't use it for anything in vivo unless you're filtering it yourself—the endotoxin level is under 10 EU/mg, which is fine for most in vitro work but not guaranteed for injections.

Anyway, you'll want to store it at -20°C, desiccated, and we've seen it hold up for two years or more that way—one lab we work with keeps theirs in a -80°C freezer and says it's still good after three. Solubility varies, but for most compounds water or DMSO works, just check teh specific COA if you're unsure.

These are better than reagent-grade alternatives for sensitive assays because the MS and NMR verification gives you tighter confidence in the structure—we've had customers complain about lot-to-lot variability with cheaper sources. The white powder form is pretty much what you'd expect, easy to weigh out without clumping.

We usually have stock on the common CAS numbers, but the 2381089-83-2 (Retatrutide) is made in smaller batches, so lead time can stretch to 4-6 weeks if we're between. Just let us know the quantity you need and we'll confirm pricing and shippng.