5-endo-Hydroxyborneol 是单萜类化合物的羟基化代谢产物，可用作合成光学纯化合物的药物中间体。

RU 56279 是一种雄激素受体 (AR) 拮抗剂，具有强效系统性的抗雄激素活性，也是 RU 56187 和 RU 58841 在体内的一个共同强效且长效的抗雄激素代谢产物。RU 56279 可用作 AR 配体以构建 AR 靶向前药系统，适用于 AR 阳性肿瘤细胞研究。

5-(3',4'-Dihydroxyphenyl)-γ-valerolactone 是 (-)-Epicatechin 的肠道菌群代谢物，具有抗氧化活性。

α-Apooxytetracycline 是 Oxytetracycline 的降解产物。Oxytetracycline 属于四环素类抗生素。

Diisobutyl carbinol is a compound that is used in fragrance materials.

(2'S)-Nicotine-1-oxide, a nicotine metabolite, arises from the liver's metabolism of nicotine via the cytochrome P450 (CYP) isoform CYP2A6. It has been identified in human sperm and semen.

γ-CEHC, a metabolite of γ-tocopherol, is predominantly excreted through urine, primarily in its conjugated form as glucuronide [1], rather than through bile.

4-epiMinocycline, recognized as a primary degradation product and a probable impurity in minocycline commercial formulations, is derived from minocycline, a broad-spectrum tetracycline antibiotic notable for its extended serum half-life. Besides treating acne, especially in older patients, minocylvania exhibits significant anti-inflammatory and neuroprotective effects.

m-Nifedipine, an impurity of Nifedipine, serves as a potent calcium channel blocker and the preferred treatment option for cardiac insufficiencies.