Mevalonic acid 5-pyrophosphate (also known as 5-Diphosphomevalonic acid) tetralithium is an endogenous metabolite involved in the mevalonate pathway.

Chaetochromin also known as 4548-G05 and NSC 345647, is an orally active, small-molecule, selective agonist of the insulin receptor. It has potent and long-lasting antidiabetic activity in vivo in mice.

tetranor-PGEM is the major urinary metabolite of PGE1 and PGE2, and is used as a marker of PGE2 biosynthesis.[1],[2] About 15% of an infused dose of PGE2 appears as this metabolite in the urine of humans. Normal healthy males excrete 7-40 μg of tetranor-PGEM over a 24-hour period.[1]

1-Palmitoyl-2-oleoyl-sn-glycerol是HIF (藻殖段诱导因子)-1中的主要二酰基甘油，属于内源性代谢产物。

Calcium 2-oxoglutarate is an intermediate in the production of GTP or ATP in the Krebs cycle. It is a reversible inhibitor of tyrosinase (IC50: 15 mM).

(-)-Jasmonoyl-L-isoleucine ((-)-JA-L-Ile)，为(+)-JA-L-Ile的对映体，是一种无活性的内源性激素。

1-Heptadecanoyl-2-hydroxy-sn-glycero-3-phosphocholine，一种血液中的内源性代谢物，主要用于妊娠和败血症的研究。

4-Phytase 是一种肌醇六磷酸磷酸水解酶。

Acyl coenzyme A synthetase (ACS)，一种生化研究中常用的酶，主要通过两步硫酯化反应激活脂肪酸与辅酶A结合，形成酰基辅酶A。该过程为脂质代谢中的多种合成与分解代谢途径，以及参与TCA循环中的有氧呼吸提供了关键中间物。