Quality
How every batch is tested
No batch is released for sale until an independent ISO 17025 accredited laboratory has run the full panel below and signed the certificate. Placeholder — confirm with your lab
| Identity | LC-MS: observed mass matches theoretical MW |
|---|---|
| Purity | RP-HPLC: release spec ≥ 98.0% |
| Endotoxin | LAL assay: < 1.0 EU/mg |
| Heavy metals | ICP-MS per USP <232> |
| Residual solvents | GC-HS per USP <467> |
| Counter-ion (TFA) | Ion chromatography: ≤ 1.0% |
| Water content | Karl Fischer: ≤ 6.0% |
| Appearance | Visual: white to off-white lyophilized powder |
Retention samples
A retained sample from every batch is stored at −20 °C for re-testing on request.