α-Laurodimyristin是一种三酰基甘油，主要由肉豆蔻酸和月桂酸组成。

L-Aspartic acid-15N,D3是一个带有15N和氘代标记的L-Aspartic acid (T2O2731BP)。L-Aspartic acid是一种氨基酸，已被证实是用于结肠特异性活性分子输送的前体活性分子。

Urea-13C,15N2是13C和15N标记的Urea (T0738)。Urea为有效的蛋白质变性剂，其作用机制包括直接和间接途径。作为润肤剂和角质层分离剂用途广泛，亦被用作利尿剂。血尿素氮 (BUN)用于评估肾功能。在肥料中广泛应用作为氮源，并且是化工行业的重要原料。

L-Threonine-D2是L-Threonine (T2O2777)的氘代化合物。L-Threonine的CAS号为72-19-5。L-Threonine是人体必需氨基酸，是神经系统的重要氨基酸。L-Threonine 在卟啉和脂肪代谢中也起着重要作用，防止肝脏脂肪堆积。L-Threonine 可用于治疗肠道疾病和消化不良，也可用于缓解焦虑和轻度抑郁。

5(S)-Hydroperoxyeicosatetraenoic acid (5(S)-HpETE) is a monohydroperoxy polyunsaturated fatty acid (PUFA) generated by the enzymatic conversion of arachidonic acid via 5-lipoxygenase (5-LO). Subsequently, 5(S)-HpETE undergoes metabolism to form leukotriene A4 (LTA4), which serves as a pivotal intermediate in the synthesis of leukotrienes (LTs).

N-Acetyloxytocin, a chemical compound, has been identified and analyzed in the neurointermediate lobe of the rat pituitary (NIL). Furthermore, its presence has also been detected in various brain regions of the rat[1].

Cholesteryl behenate is a standard in electrospray ionization tandem mass spectrometry for the analysis of cholesteryl esters and cholesterol.

Uric acid-15N2是15N标记的Uric acid (T0626)。Uric acid是一种重要的抗氧化剂，能够清除氧自由基 (oxygen radical)，有助于维持血压的稳定和抗氧化应激。它可以清除活性氧 (ROS)，例如单线态氧和过氧亚硝酸盐，并抑制脂质过氧化。

9(S)-HpODE is produced by the action of arachidonate 5-LO on linoleic acid. It can be further metabolized by potato hydroperoxide dehydratase to colneleic acid.