5-hydroxytryptamine is a natural product from animals.

N-Aminofluorescein is a highly selective and sensitive fluorescent probe for Cu2+ and can be used to detect Cu2+ in biological systems (λex/em=495/516 nm).

Pueroside B may can treat coronary heart disease, it can interact with two or more targets[peroxisome proliferator activated receptor γ (PPAR-γ), angiotensin-converting enzyme (ACE), hydroxymethylglutaryl coenzyme A receptor (HMGR), cyclooxygenase-2 (COX2), and thrombin].