Diaminopimelic acid or DAPA is a lysine-like amino acid derivative that is a key component of the bacterial cell wall. DAPA is incorporated or integrated into peptidoglycan of gram negative bacteria and is the attachment point for Braun's lipoprotein (BLP or Murein Lipoprotein). BLP is found in gram-negative cell walls and is one of the most abundant membrane proteins.

Halofenozide is an ecdysteroid agonist and used as a pesticide.

6-Hydroxyindole is a reactant for asymmetrical synthesis of notoamide J as a potential biosynthetic precursor of prenylated indole alkaloids and for preparation of indoleoxyacetic acid derivatives as peroxisome proliferator-activated receptor agonists.