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1
HPLC purity on every COA
We require every supplier Certificate of Analysis to include HPLC purity data. The COA must show the chromatographic method used and the resulting purity percentage.
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2
Content analysis
Each COA must report content (net peptide content or active fraction), not just purity. This distinguishes the amount of active peptide from the total mass in the vial, including counter-ions and residual solvent.
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3
Salt composition
The COA must identify the salt form (e.g., TFA salt, acetate salt) and report the counter-ion content. Salt form affects solubility, molecular weight calculations, and downstream assay behavior.
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4
Independent third-party lab verification
We may send selected lots to an independent, accredited analytical laboratory for confirmatory testing. When available, these results are provided to purchasing teams on request.
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5
No fabricated or altered COAs
We do not create, modify, or fabricate Certificates of Analysis. If a supplier cannot provide authentic, instrument-backed COA data, the lot does not enter our catalog. Period.
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6
Lot traceability
Every vial is traceable to its supplier lot and COA. If you need lot-specific documentation after purchase, we can provide it.
What we do not do
We do not provide medical claims, dosing guidance, reconstitution-for-injection instructions, or any content suggesting these reagents are suitable for human or veterinary use. We are not a pharmacy or compounding facility. If a prospective customer requests guidance for self-administration, we decline the sale.