O-desmethyl Mebeverine acid is a metabolite of Mebeverine.

8-isoProstaglandin F2α (8-isoPGF2α; 8-isoprostane) is a byproduct of non-specific lipid peroxidation, resembling prostaglandin in structure. In humans and rats, its metabolite, 12,3-dinor-8-isoPGF2α, is formed following exogenous administration of 8-isoPGF2α, which is converted to 2,3-dinor-8-isoPGF1α and 2,3-dinor-8-isoPGF2α. Additionally, rat hepatocytes can further break down 8-isoPGF2α into a β-oxidation product, 2,3,4,5-tetranor-8-isoPGF2α. The metabolite, 2,3-dinor-8-isoPGF2α, is normally found in human urine at concentrations of 200-300 pg/ml. Its levels rise in conditions associated with oxidative stress, such as smoking, demonstrating a correlation with the concentration of its precursor, 8-isoPGF2α.

Hydroxy lenalidomide, a metabolite of the thalidomide analog and anticancer agent lenalidomide, is a derivative substance involved in the metabolic process of its parent compound.

trans-Resveratrol-3-O-β-D-Glucuronide 是 trans-Resveratrol 的一种活性代谢产物，能够抑制肠癌细胞系的增殖，并促进肝脏丙酮酸的生成。

Desmethyl ferroquine is the active and major metabolite of Ferroquine.Desmethyl ferroquine shows significant activity against Chloroquine-susceptible and resistant P. falciparum strains. Ferroquine is an antimalarial.

4-Hydroxyacetophenone oxime is an impurity of Acetaminophen (Paracetamol), a potent COX-2 and hepatic NAT2 inhibitor used as an antipyretic and analgesic drug.

N-Deschlorobenzoyl indomethacin是indomethacin的主要代谢物，对AKR1C2（IC50=100 μM）和AKR1C3（IC50>100 μM）的抑制活性非常弱。

7-hydroxy Coumarin glucuronide is a 7-hydroxy coumarin phase II metabolite that can be used as a standard for the analysis of 7-hydroxy coumarin metabolism.

Apalutamide-COOH is a metabolite derived from Apalutamide, which acts as a highly potent and competitive antagonist of the androgen receptor (AR). It effectively binds to the AR with an IC50 value of 16 nM.