Every batch tested by Janoshik.
We don't ask you to take our word for it. Each production batch is independently assayed for identity and purity, and the Certificate of Analysis is published so you can match the batch number on your vial to its report.
≥0%
Purity standard
0%
Batches tested
HPLC
Identity & purity
How every vial is verified
Sourced & lyophilized
Each compound is synthesised to a ≥99% specification, lyophilized, and vialed under controlled conditions before any batch is released.
Independently assayed
A sample from every production batch is sent to Janoshik Analytical — an independent lab — for HPLC identity and purity analysis.
Batch-matched & published
The Certificate of Analysis is tied to the batch number printed on your vial and published here, so you can verify exactly what you received.
Recent batch reports
Real Janoshik results from our current batch. Tap any card to open its report on janoshik.com and verify every figure yourself.
Want the CoA for a specific batch?
Send us the batch number from your vial and we'll share its full report — or browse the catalogue to see what's in stock.