Certificate of Analysis Library
Every batch.
Every result.
Third-party verified COAs for every compound we ship. Match your vial's lot number to the exact certificate below.
≥99%
Average lot purity
100%
Batches third-party tested
ISO
Aligned facility
Every lot
Publicly listed here
Current lot certificates
New lots are added within 48 hours of batch release.
99.4% PureLOT DL-2025-001
99.1% PureLOT DL-2025-002
99.6% PureLOT DL-2025-003
99.3% PureLOT DL-2025-004
99.2% PureLOT DL-2025-005
99.5% PureLOT DL-2025-006What every certificate covers
Transparent by design.
Each COA is produced by an independent third-party laboratory and covers the following minimum data points for every lot we release.
HPLC Purity
Reverse-phase HPLC measures peptide purity — we publish the exact percentage, not a range.
Mass Spectrometry
ESI-MS confirms molecular identity by matching observed vs. theoretical mass.
Lot Number
Every vial carries a traceable lot code that links to its specific COA in this library.
Independent Lab
Analysis is run by a third-party ISO-aligned facility — not our own in-house equipment.
Don't see your lot?
We'll track it down.
If your lot number isn't listed above, contact us directly. Every batch we've ever shipped has a COA on file — we'll send it within one business day.
Request a COA →