How to Read a MOTS-c Certificate of Analysis
What KYIN Peptides' MOTS-c certificate of analysis actually reports, and how to independently verify it.
What KYIN's MOTS-c COA Reports
Every batch of KYIN's MOTS-c is independently tested by Janoshik to over 99.4% purity. The certificate reports an HPLC purity result and a mass spectrometry identity confirmation verifying the sample's molecular weight matches MOTS-c's expected 16-amino-acid sequence. Because MOTS-c is a relatively recent research compound compared to older peptides, and its mitochondrial-DNA origin makes it less familiar to some contract manufacturers, MS identity confirmation is a particularly useful check against sequence errors specific to newer synthesis runs.
Reading the HPLC Trace
Look for a single, sharp, dominant peak accounting for the reported purity percentage, with any secondary peaks making up only a small remainder. A clean chromatogram alongside a matching MS identity result gives reasonable confidence that the vial contains what it claims to, at the purity stated.
How to Verify Independently
Because MOTS-c is a newer addition to the research-peptide market than compounds like BPC-157 or TB-500, fewer independent verification tools existed for it historically. Janoshik's public database at janoshik.com/verify now closes that gap: enter the batch number from your certificate to confirm it against the lab's own testing records. Our general How to Read a Certificate of Analysis guide covers the underlying principles in more depth.
MOTS-c testing questions
What purity does KYIN Peptides' MOTS-c meet?
KYIN Peptides' MOTS-c is independently tested by Janoshik to over 99.4% purity, with mass spectrometry identity confirmation — see the current batch's certificate of analysis on the product page.
Why does identity confirmation matter for a newer compound like MOTS-c?
Because MOTS-c is a more recently characterized research compound than older peptides, mass spectrometry identity confirmation is a particularly useful check against sequence errors that can occur in newer or less-established synthesis runs.
Interested in MOTS-c?
See pricing, current batch purity, and the full certificate of analysis on the product page.