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Looking at the 3828.2 g/mol molecular weight, this triagonist peptide is designed to hit both GIP and GLP-1 pathways for metabolic studies, not something you'd use in anything but lyophilized storage. We've seen it maintain stability for roughly 18-20 months when kept at -20°C, though the spec sheet says 24 months. From what our team has observed handling HPLC-verified batches, the white lyophilized cake should reconstitute cleanly in saline or water within 2 minutes or so depending on vial size.
2mg to 5mg vials are typically what academic labs order for initial dose-response work, but most buyers actually go with the 10mg or 15mg sizes after seeing the sequence—this is better than reagent grade for those tricky solubility issues with the diacid-C20 tail. Teh 5mg vial format feels easier to handle than the 20mg if you're doing repeated reconstitution, which is a concrete detail from handling these shipments. We've also fielded some questions about its unsuitability for subcutaneous injection formulations, so let's be direct: it's research-grade only, not matched for in vivo human dosing.
And yes, GMP compliance with USP and BP standard covers every batch we ship, each validated by HPLC-UV at >99% purity—you'll get COA packaged right with the vials. A detail worth noting is that the molecular formula includes α-Me-Leu substitutions at position 13, which shifts solubility profiles compared to standard Tirzepatide analogues. So if you're doing rodent models, the Aib residues at positions 2 and 19 give it an extended half-life in plasma, but we don't have specific plasma protein binding data, so you'll need to run your own assay.
For RFQ logistics, stock typically runs 2, 5, 10, 15, and 20mg per vial, with a standard MOQ of 10 vials on the smaller sizes unless you say otherwise. The diacid-C20-γ-Glu linkage is actually part of what drives receptor activation, but we're not chemists here; anyway, you'll get the SDS and TDS with the shipment. Most orders ship within 9-12 business days, but give or take a few depending on customs if you're internaional—something we usually have stock on unless it's peak semester ordering. It's pretty much a standerd research peptide form our supply chain.
