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If you're sourcing this for metabolic pathway work, you've likely dealt with the usual variability—the COA tells you everything you need. We've sent out enough batches to know that consistent purity at >99% is what keeps your HPLC data clean, and we test every single lot rather than just the first one off the line. Basically, you get a full scan report with each vial.
5mg and 10mg vials are what most labs request, but we've got a retest policy that covers you if the lyophilized powder sits on your shelf past six months at -20°C. That's something a lot of suppilers don't mention up front. The storage requirement is strict, and we'll honor a free retest (check the lead time) if your setup needs confirmation before blending a batch.
Molecular weight is 2174.62, and the CAS 1627580-64-6 is what you'll pull up when running your own LC-MS. What matters more to us is the batch-to-batch reproducibility—we're GMP certified, which means the process audits match what the spec sheet says. You won't see a lot of product that's had third-party HPLC run, but we do that here. It's not perfect for high-throughput solubility screening; the lyophilized cake needs careful reconstitution, something people sometimes skip reading about.
Appearance is a white powder, pretty much standerd for peptides in this class, but we've noticed it can take a bit longer to dissolve than some others—usually a gentle swirl for 30 seconds or so. Each sealed vial comes with a COA attached, and we batch those sequentially so you can trace back to manufacturing date. No twograms in same lot number unless they were lyophilized together.
Anyway, when you order, what you actually get is the lyophilized powder in a sealed vial plus the documentation pack—SDS, COA, and sometimes a certificate form the GMP audit if you ask. Most buyers go with the 10mg vial because of that it's easier to aliquot without wasting material. We ship with ice packs and a tempearture logger, though we usually have stock ready to go within a week.
For research use only, obviously—this isn't suited for anything beyond the bench, and we don't hedge on that. The molecular formula C101H152N28O22S2 is what it is, and if you need tighter tolerance than our >99%, you'd need to specify at quote. We don't offer custom purity levels on this one.
MOQ is typically 1 gram, but we can discuss smaller quantities for first-time buyers or specific research needs. Just reach out to our sales team.
Lead time is usually 5-7 business days after order confirmation, depending on stock. For larger custom orders, it might take up to 10-12 days.
Yes, we provide a COA for every batch showing >99% purity and HPLC results. You'll get it with your shipment or on request.
Storing at -20°C keeps the peptide stable and prevents degradation over time. If you keep it at room temp, it may lose potency quickly.
We can customize packaging to your specs, like smaller vial sizes or private labeling, but that may affect MOQ and lead time. Just let us know what you need.
