Piliformic acid is a fungal metabolite that has been found inN. pseudotrichiaand has diverse biological activities.1,2It is cytotoxic to BC-1 human breast cancer cells (IC50= 5 μg/ml).2Piloformic acid is active againstL. braziliensisamastigotes (IC50= 78.5 μM). It is also active against the plant pathogenic fungiC. gloeosporioides(MIC = 292 μM).1 1.Elias, L.M., Fortkamp, D., Sartori, S.B., et al.The potential of compounds isolated from Xylaria spp. as antifungal agents against anthracnoseBraz. J. Microbiol.49(4)840-847(2018) 2.Cota, B.B., Tunes, L.G., Maia, D.N.B., et al.Leishmanicidal compounds of Nectria pseudotrichia, an endophytic fungus isolated from the plant Caesalpinia echinata (Brazilwood)Mem. Inst. Oswaldo Cruz113(2)102-110(2018)

Cholesteryl palmitoleate, a cholesterol ester, exhibits elevated plasma levels in ApoE-/- mice following exposure to cigarette smoke and in pediatric patients diagnosed with biliary atresia. It serves as a standard for identifying cholesterol esters in human meibomian gland secretions.

Dihydrocarminomycin is an anthracycline antibiotics.

1-Methylnicotinamide是nicotinamide的活性代谢产物，由nicotinamide N-methyltransferase催化形成。1-Methylnicotinamide以浓度依赖的方式诱导人脐静脉内皮细胞（HUVECs）分泌一氧化氮。当以30 mg/kg剂量给药时，能增加大鼠血浆6-keto-prostaglandin F1α水平，并在相同剂量下抑制大鼠胶原诱导的血栓形成。

Suberylglycine is an acyl glycine that is a normally minor metabolite of fatty acid.

Octanoic Acid-13C is intended for use as an internal standard for the quantification of octanoic acid by GC- or LC-MS. Octanoic acid is a medium-chain saturated fatty acid. It has been found in Teleme cheeses made from goat,ovine,or bovine milk.1 Octanoic acid is active against the bacteria S. mutans,S. gordonii,F. nucleatum,and P. gingivalis (IC80s = <125,<125,1,403,and 2,294 μM,respectively).2 Levels of octanoic acid are increased in the plasma of patients with medium-chain acyl-CoA dehydrogenase (MCAD)deficiency,an inborn error of fatty acid metabolism characterized by hypoketotic hypoglycemia,medium-chain dicarboxylic aciduria,and intolerance to fasting.3,4

Vitamin K3-D3是Vitamin K3 (T0449)的氘代化合物。Vitamin K3的CAS号为58-27-5。Menadione是合成的萘醌，能够在体内转化成活性维生素K2。

L-Serine1-13C,15N是含有13C 和15N 标记的 L-Serine (T2O2730)。L-Serine ( (-)-Serine; (S)-Serine)是一种非必需氨基酸，对于细胞增殖具有重要作用。

Isovaleric acid-D9是Isovaleric acid (T5609)的氘代化合物。Isovaleric acid的CAS号为503-74-2。3-Methylbutanoic acid是天然脂肪酸，可能与人类新生儿死亡以及牙买加呕吐病有关。