Despite most early peptide research using trifluoroacetate salts, the great majority of therapeutic peptides are marketed as hydrochloride or acetate salts.
A claim's standing is its latest row in an append-only history; a tombstone names the later evidence and the reason. The Graveyard and the Resurrection Yard.
Negative findings
failure is information
Nobody has filed a failure yet. Failures are information; this list is waiting for an honest one.