Chapter 01 — Quality
The certificate comes first.
We don't self-report purity numbers. Every incoming lot is quarantined, sampled, and shipped to an independent analytical laboratory. The report they return is the one you download on the product page.
The release protocol
Receiving & quarantine
Vials arrive sealed and go straight to a locked quarantine cabinet. Nothing gets a SKU until the file is complete.
Identity by LC-MS
An accredited outside lab confirms molecular mass against reference. We look for a single dominant peak at the expected m/z — anything else is a rejection.
Purity by HPLC-UV
A separate injection quantifies purity. Our release threshold is ≥99%; borderline lots go back to the supplier, not to you.
Endotoxin
USP <85> replicate testing at ≤0.05 EU/mL. Both replicates must pass; a single failure sends the lot back to quarantine.
Publish, then list
The signed PDF is uploaded to the product page. Only then does inventory go live and orders open.
What we test for