1-Stearoyl-2-linoleoyl-sn-glycero-3-phosphocholine is an endogenous metabolite.

D-Glucose-13C-2是一种13C 标记的 D-Glucose。D-Glucose (T0887) (Glucose）作为一种单糖，是生物学中至关重要的碳水化合物。它不仅是碳水化合物的甜味剂，还在一般代谢中扮演关键角色，并作为细胞代谢状态及生物和非生物应激反应的关键信号分子。

D-Glyceric acid为尿中的一种内源性代谢物，适用于原发性高草酸血症Ⅰ型和戊二酸血症2型的研究。

Levulinic-D5 Acid是Levulinic Acid (T5551)的氘代化合物。Levulinic Acid的CAS号为123-76-2。Levulinic acid是一种合成生物燃料的前体。

β-Muricholic acid (β-MCA) is a murine-specific primary bile acid.[1],[2] Dietary administration of β-MCA reduces HMG-CoA reductase activity in liver microsomes from mice fed a high cholesterol and cholic acid diet.[3] Dietary administration of β-MCA also dissolves 100% of gallstones in a gallstone-susceptible mouse model of diet-induced cholesterol gallstones.[4]

Invertase 是存在于植物和微生物中的一种主要酶，常用于生物化学研究。Invertase 催化双糖蔗糖水解成葡萄糖和果糖。

5-Aminolevulinic acid 是血红素合成的中间体，是卟啉合成途径中的一个化合物。它是一种光敏剂、抗肿瘤剂和前药。它也可以(以盐酸盐的形式)与蓝光照明结合使用，用于治疗面部或头皮的轻度至中度厚的光化性角化病。

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].

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).