Fibronectin is a high-molecular weight (~440kDa) extracellular matrix glycoprotein that binds to membrane-spanning receptor proteins called integrins.In addition to integrins, fibronectin also binds extracellular matrix components such as collagen, fibrin and heparan sulfate proteoglycans.

Raclopride 是 D2 多巴胺受体的选择性拮抗剂，Ki 值为 1.8 nM。

2',4,4',6'-四甲氧基查尔酮是一种天然产物。