Native sequence
A native sequence is the peptide as it occurs biologically, synthesised to match. Identity confirmation is straightforward because the theoretical mass is well established.
Fragment
A fragment is a defined portion of a larger sequence — AOD-9604 is the canonical catalogue example. Fragments have their own theoretical masses and their own analytical profiles.
Analogue
An analogue carries deliberate substitutions or modifications relative to a reference sequence. Because a substitution changes mass, an analogue's certificate must be read against its own theoretical value, never the parent's.
Research use only
All materials referenced here are supplied by Aura Peptide Co. strictly for in-vitro laboratory and research use. Nothing on this page is guidance for human or animal use.