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We run HPLC before it leaves, and the 99% purity holds pretty consistently across lots—we've seen it vary by less than 0.3% in the last six months or so, which is tighter than most suppilers manage for this molecular weight range, 4813 g/mol.
The COA includes CAS 2023788-19-2 and a full breakdown of the peptide content, but what you'll actually want to check is the retest policy; we usually have stock, but confirm lead time if you're ordering over 50 grams because the freeze-dried powder is stored at 2-8°C and we don't keep huge quantities on hand.
One thing we don't do is guarantee it for in vivo work—this is strictly research use only, and the white powder format isn't ideal for anything beyond that.
It basically ships in sealed vials protected from light, and teh 24-month shelf life is only valid if you keep it refrigerated; we've had a client leave a sample at room tempearture for a week and the HPLC showed degradation starting around the 5% mark.
Also, the molecular formula C225H348N48O68 means the batch-to-batch consistency is good, but you'll want to request the TDS if you're running because the lyophilization process can introduce slight moisture variation.
Our MOQ is typically 1 gram, but we can discuss smaller quantities for initial trials depending on your research needs.
For UK orders, lead time is usually 7-14 business days after payment confirmation, including customs clearance.
Yes, every batch comes with a COA verifying the 99% purity and other specs like molecular weight and appearance.
Store it at 2-8°C in a fridge, protected from light. Keep the vial sealed and dry to avoid moisture damage.
Sure, we can adjust packaging sizes, like 100mg or 500mg vials, as long as the total order meets our MOQ.
