2-Propylheptanoic acid (2-N-PROPYL-1-HEPTANOIC ACID) is a structural analogue of valproic acid and a raw material for the production of sorbitol mono(2-propyl)heptyl ester.

Leuprolide is an agonist at pituitary GnRH receptors. Leuprorelin is a gonadotropin-releasing hormone (GnRH) analog used to treat a wide range of sex hormone-related disorders including advanced prostatic cancer endometriosis and precocious puberty.

Selenocysteine is recognized as the 21st amino acid in ribosome-mediated protein synthesis and its specific incorporation is directed by the UGA codon.