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The 99% purity is what we needed for those receptor-binding assays where even trace impurities can throw off the IC50 curves, and this CAS 2023788-19-2 batch came in at 99.2% on the latest COA we received from teh supplier.
Basically, we've been struggling with inconsistent results form the semaglutide batches we were sourcing locally, so switching to this tirzepatide powder as a comparator compound should give us a tighter tolerance than most of what's avaliable through the UK distributors we were dealing with (usually 2-4 weeks lead time anyway).
Most buyers in our network go with the 10mg vials for reconstitution work, but I went with a mix of 5mg and 30mg vials since we'll be running both low-dose and high-dose dose-response studies in parallel.
It's a lyophilized powder, so we'll need to be careful with reconstitution protocols — the storage conditions are pretty standard: keep it dry and dark at 0-4°C for short-term use, or -20°C if you're sitting on it for months, with a shelf life of over 2 years if stored properly.
One thing that caught me off guard with the last peptide shipment was the vial variance — some vials had more residual moisture than others — but the COA on this one shows consistent weights across the batch, which is a detail I didn't think to ask about last time.
We had to confirm the MOQ was 10 boxes, but the supplier actually had stock in their UK warehouse, so we're looking at a 5-7 day delivery rather than usual 20 days or so.
We typically require a minimum order of 10 vials per box, so for the 5mg vials that would be 10 vials. Smaller trial orders may be possible depending on stock, just ask.
Orders are usually dispatched within 1-3 business days after payment clears. Shipping to the UK via tracked courier takes about 5-10 business days depending on customs.
Yes, we include a COA from our lab with every batch, confirming the 99% purity and other specs like appearance and molecular weight. Just request it with your order.
Store it in a dry, dark place at 0-4°C for short term use, or at -20°C for long term storage. Kept that way, it stays stable for over 2 years.
We offer standard vials in 5mg, 10mg, 15mg, and 30mg, but custom packaging like different vial counts or labels is possible for larger orders. Contact us with your requirements.
