Cofactors and Small Molecules
These are not peptides, which is why they sit under compounds rather than under the peptide roots. The group covers a dinucleotide cofactor, a thiol tripeptide, and two synthetic small molecules with no peptide bond in them at all.
Identity confirmation works differently here. For a small molecule the molecular formula and a registry number settle it, where a peptide needs its sequence. Purity conventions differ too: an area-percent figure from HPLC on a small molecule is not directly comparable to a net peptide content figure, so read the method on the certificate before comparing across the two groups.
Certificates of analysis for every lot on this site are listed in the certificate of analysis library.