Ergosterol Acetate is one of the acetate derivatives of Ergosterol from Monascus anka.

Elastase from porcine pancreas is a single polypeptide chain of 240 amino acid residues.

Fertirelin, or fertirelin acetate, sold under the brand name Ovalyse, is a gonadotropin-releasing hormone agonist (GnRH agonist).Fertirelin, an analog of GnRH 2.5 to 10 times more potent than native GnRH , has become the treatment of choice for reversing follicular cysts.