Calcitonin (8-32), salmon is a highly selective amylin receptor antagonist.Calcitonin is a hormone known to participate in calcium and phosphorus metabolism. In mammals, the major source of calcitonin is from the parafollicular or C cells in the thyroid gland. Calcitonin is a 32 amino acid peptide cleaved from a larger prohormone.

3-苯基丁酸从堆肥土壤中分离出红红球菌 PB1，并通过苯环的初始氧化和侧链的初始氧化进行代谢。

2,4,5-三溴咪唑是一种源自海洋的天然产物，存在于 Hexaplex trunculus 中。