We’ve run HPLC form the last six production cycles, and purity consistently hits above 99%—typically between 99.2% and 99.4% depending on the crystallization step. The COA will show single impurity at or below 0.8%, which is tighter than the ≤1.0% spec most buyers expect.

Moisture content usually lands around 0.3% to 0.5%, well under the 10.0% ceiling, and peptide content is always above 80.0% by weight—actually, we see 82-85% routinely after lyophilization. If you need a retest after receipt, our policy covers that within 30 days of delivrey, but we’ll share the batch-specific HPLC traces before shiping so you can compare.

CAS 2381089-83-2, molecular formula C187H291N45O5—that’s the only matrial we pack into these vials (10mg per vial, 10 ), and each vial is weighed individually with a Mettler balance prior to crimping. The powder appearance is consistently white, no yellowing or clumping, which would flag a moisture breach during storage.
One thing to note: this is pharmaceutical-grade peptide intended for scientific research only, not for human use or clinical dosing. Some buyers ask about freeze-thaw stability, and we don’t recommend it—once reconstituted, store at 2-8°C in a dry, dark place, and we usually see at least 2 years shelf life if kept sealed.

For bulk orders (50 units or so), we can include a pooled sample for your own HPLC verification alongside teh individual vial COAs. Lead time is typically 10-14 working days after payment confirmation, but we do keep safety stock of the top batches (usually 200-300 kits) ready to ship faster.

So, if you want to move ahead, just confirm MOQ—we’re flexible on 10-box multiples, and we’ll send the RFQ reply with your batch-specific specs by end of day.
We typically require a MOQ of 10 boxes (100 vials) for bulk orders, but we can discuss smaller quantities depending on your needs.
We supply a Certificate of Analysis (CoA) with each batch showing HPLC purity ≥99%, single impurity ≤1.0%, and other specs like moisture and peptide content.
Store them at 2-8°C in a dry, dark place. Properly stored, they'll last over 2 years.
For standard bulk orders, we ship within 3-5 business days after payment clearance. Larger quantities may take up to 10 days.
We can discuss custom packaging for large orders, but standard is 10mg/vial with 10 vials per box. Minimums and pricing would apply.