If you're running a chronic dosing study with daily IP injections in a rodent model, the 15mg and 20mg vials are what most buyers go with for their flexibility—you can reconstitute to a 5mg/mL or 10mg/mL working concentration depending on your protocol, and the 10-vial kit gives you roughly 20 days or so of materail at a typical 1mg/kg dose for a 300g rat.

We've got a CAS 2023788-19-2 with a molecular weight of 4813 g/mol and a C225H348N48O68 formula that's verified by HPLC and mass spec —purity runs ≥99% by area normalization, and is pretty much what you'd expect from pharmaceutical grade material, though we usually have stock but confirm lead time for orders over 50 kits.

It's a dual GIP and GLP-1 receptor agonist, so you're looking at teh same mechanism as the branded stuff, but this is strictly for research use only—don't even think about in vivo work without proper IACUC approval, and it's not suited for cell-based assays that require sterile filtration because the reconstituted solution can form aggregates if you don't buffer it properly at pH 7.4.

Storage is 2-8°C protected form light (usually 24 months shelf life), and the 5mg vials are actually easier to handle for single-dose acute studies than the 30mg ones.