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Getting calls form labs needing something that works in metabolic pathway work without the degradation headaches you see with some of the other GLP-1 analogues we've handled, so I ordered a batch of the retatrutide lyophilized powder — they'll reconstitute it in buffer for dose-response assays, and it's strictly research use only, obviously.
Purity came back at ≥98% by HPLC, which is better than reagent grade for this type of peptide work, and they provide COA and MS with each shipment so we can verify before it goes to the end user.
Molecular weight sits at roughly 3964.3 g/mol, and the solubility is straightforward in water or buffer solutions, so no weird solvent extractions needed — 24-month stability when stored at 2-8°C unopened, though for long term you'll want -20°C.
We usually have stock in 1mg to gram quantities, but confirm lead time if you need something custom, because teh packging is customizable and that can add 20 days or so depending on the fill size.
Endotoxin levels are under 0.1 EU/mg, and it's sterile filtered before lyophilization, so it's fine for cell-based assays, but it's not suited for anything beyond in vitro work — GMP compliant production, but that doesn't change the research-only designation.
Yes, we can tailor package sizes to your exact needs, from 1mg up to gram quantities. There is no fixed MOQ — just let us know the amount you require, and we'll provide a quote.
We supply a Certificate of Analysis (COA), HPLC chromatogram, and MS spectra for every batch you order. If you need NMR data or additional QC reports, just ask and we can include them.
Keep the unopened vial at 2-8°C for short-term storage. For long-term stability up to 24 months, store it at -20°C. Once reconstituted, use it promptly and avoid repeated freeze-thaw cycles.
Yes, the product is sterile-filtered before lyophilization, and the endotoxin level is guaranteed below 0.1 EU/mg. Both specs are typical for in vivo or in vitro research use.
Absolutely — each batch comes with its own HPLC and MS analysis results. These are run in-house under GMP conditions, and we can share the raw data files if you need them for your records.
