Ethylenediaminediacetic acid is derived from two molecules of glycine linked by amines.

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

Apigenin triacetate是一种F. graminearum的代谢物，可用于生物化学实验和药物合成研究。

Pyruvate kinase 是一种糖酵解酶，催化磷酸烯醇式丙酮酸和 ADP 转化为丙酮酸和 ATP。

Thymopentin acetate为胸腺皮质及髓质上皮细胞主要分泌的生物活性肽，是一有效免疫调节剂，具有极短的血浆半衰期(30秒)，能促进自人类胚胎干细胞生成T细胞群。

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]

3-Hydroxy-4-aminopyridine 是一种天然产物，可用于生命科学领域的相关研究。其产品编号为 T66009，CAS号为 52334-53-9。

2-Methylcitric acid trisodium (Methylcitric acid) is an endogenous metabolite in the 2-methylcitric acid cycle, which accumulates in methylmalonic and propionic acidemias.

Very long chain polyunsaturated fatty acids (VLCPUFA), notably present in the retina, sperm, and brain, have yet to be fully understood in terms of their biosynthesis and functional roles within these tissues. Recent research, particularly with the elongation of very long-chain FA-4 protein, indicates a distinct function for VLCPUFAs in retinal development and the progression of macular degeneration. CAY10632, a specific C32:6 VLCPUFA, while largely unexplored in its biological activities, is believed to play a role in maintaining normal function of photoreceptor cells in the retina.