The receipts, on every batch.
Each production lot is sent to an independent U.S. laboratory for HPLC purity testing and mass-spec identity confirmation. Results are published here and linked from the QR code on every vial.
Independent verification on every batch
Every production lot is submitted to an independent U.S. analytical laboratory for release testing. Results are returned as a signed Certificate of Analysis and published here in full transparency. We do not rely on manufacturer-supplied data alone.
A U.S.-based contract analytical laboratory specializing in research-grade peptide and small-molecule testing. Analytical work is performed against USP, EP, and ICH method references using qualified instrumentation, with audit-ready raw data retained for three or more years.
Standard release panel
- Purity (HPLC)Reverse-phase HPLC with UV detection, reported to 0.1% precision.
- Identity (LC-MS)ESI+ mass spectrometry per USP <736>, mass accuracy ±0.01 Da.
- Bacterial endotoxin (LAL)Kinetic chromogenic LAL per USP <85>, detection to 0.005 EU/mL.
- Water contentCoulometric Karl Fischer titration per USP <921>.
- Residual solventsHeadspace GC-MS per USP <467> and ICH Q3C.
Our commitment: We release only batches that meet internal specifications and independent lab acceptance criteria. If a lot does not conform, it is rejected, not retested into compliance. This is how we deliver analytical reagents you can plan experiments around. Each Certificate of Analysis reports results for the identified lot only.
Recent batches
Each certificate applies only to the specific lot identified on it. A result for one lot does not establish the analytical results of any other lot.