Wholesale Tirzepatide 20mg Peptide - GMP Certified Manufacturer

The dual agonism at GIP and GLP-1 receptors is what really sets this apart for in-vivo metabolic pathway work — you're not just stimulating insulin secretion, you're also modulating lipid metabolism and energy expenditure in a way single agonists can't. Most labs running on pancreatic beta cell models or hypothalamic feeding studies find the 20mg vial size gives them enough matrial for about 40 to 50 injections at the 5nM range, depending on reconstitution volume and batch size.

It's a 4813.5 g/mol synthetic peptide, sequence validated against the reference, and we're seeing HPLC purity consistently above 99% with endotoxin levels under 1.0 EU/mg — but you'll want to verify teh specific COA for your lot because minor batch variation happens. Solubility is straightforward in sterile water or phosphate buffer at pH 7.4, though you'll need to keep it at -20°C away form light once reconstituted, as the Aib residues in the backbone make it more susceptible to hydrolysis over time.

We usually have about 200 vials in stock at any given time, but the MOQ is 10 and lead time can stretch to 14 working days or so if we're between production cycles. Each vial arrives as a white lyophilized cake, packaged with a desiccant and sealed under nitrogen — what you won't see on the spec sheet is that the rubber stopper is a 20mm butyl formulation that holds vacuum well, so reconstitution using a vented needle is pretty straightforward.

Actually, this grade isn't designed for cell culture work with serum-containing media because the albumin binding affinity can skew free peptide concentration measurements — we usually recommend it for receptor binding assays or in-vivo pharmacokinetic studies instead. The CAS number is 2381089-83-2, and it's GMP-certified, meaning batch-to-batch consistency in the 20mg fill weight is typically within ±1% by gravimetric analysis, but you're paying for that tighter tolerance compared to reagent-grade peptide supliers.

495.94 g/mol per amino acid residue on average, but you don't need to check that — what matters is that the TFA salt content is kept below 5% by weight to minimize cytotoxicity in sensitive assays. We include HPLC and MS traces with every shipment, and if you request it before dispatch, we can also provide a residual solvent analysis (usually 2-3 week turnaround).

So for typical buyer running a 30-day study with daily dosing at 3mg/kg in rodents, that 10-vial box gives you roughly 66 doses at 20mg per vial minus reconstitution loss — it's actually better than reagent grade for this because you don't have to re-purify before use.