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We've reviewed your RFQ and can hit that 99%+ purity on these compounds, with each batch verified through HPLC and mass spec to back up the numbers. And the lyophilized powder form, stored at -20°C, is pretty much standerd for maintaining stability during transit and long-term use.
Actually, most buyers go with teh 5L drum for buffer solubility work — it's easier to handle than the smaller vials when you're reconstituting multiple grams at a time. That 2-4 week lead time (usually closer to 3 weeks for custom sequences) is for the synthesis itself, though we do keep a few common targets in stock.
Solid-phase synthesis is our default for most runs under 50 mg, but we'll switch to liquid-phase for anything above that — it's tighter on cost and gives better yields. One thing a buyer might not think to ask: the white powder appearance can vary slightly between batches, but it doesn't affect the HPLC purity numbers at all.
We've got GMP-certified facilities running this, but honestly, for research-grade material in milligram quantities, the COA covers what you need without the full audit trail. molecular weight here is custom, so just send the sequence and we'll confirm the exact mass before starting production.
Sterile vials are included for each batch, typically filled under nitrogen to minimize oxidation during storage. We don't recommend this matrial for anything beyond in vitro research — it's not suited for pre-clinical work without addtional endotoxin testing on your end.
We typically start custom orders at 5 mg for research-grade peptides. MOQ can vary depending on sequence complexity, but we're flexible for academic labs—just reach out with your specs.
Yes, every order comes with a full Certificate of Analysis and GMP documentation on request. We also include HPLC and MS data to confirm the >99% purity.
Standard lead time is 2–4 weeks depending on sequence length and modifications. We can rush shorter sequences in under 2 weeks if needed.
Absolutely—we can package into sterile vials at custom amounts, or pre-aliquot into smaller vials for your storage convenience. Just specify when you order.
Reconstitute in sterile water or buffer, then store at -20°C in small aliquots to avoid freeze-thaw cycles. The lyophilized powder itself stays stable for months at -20°C.
