lc 80

L-Carnitine hydrochloride ((R)-Carnitine hydrochloride) 是一种高极性的双离子小分子，是线粒体 β-氧化的重要辅因子。L-Carnitine hydrochloride 促进长链脂酰辅酶 A 转运至线粒体以进行 β-氧化降解，辅助细胞能量代谢。L-Carnitine hydrochloride 还具有抗氧化活性，可缓解多种先天性代谢异常引起的代谢失衡，是代谢研究中的重要工具化合物。

Sarolaner (PF-6450567) 是一种可口服的广谱外寄生虫剂，有效抑制狗身上的跳蚤和虱子，对C. felis 的 LC80值为 0.3 μg/mL，对O. turicata 的 LC100值为 0.003 μg/mL。

Ochratoxin A-13C20is intended for use as an internal standard for the quantification of ochratoxin A by GC- or LC-MS. Ochratoxin A is a mycotoxin that has been found inAspergillusandPenicillium.1It increases lipid peroxide levels and the number of apoptotic cells, as well as reduces superoxide dismutase activity in rat kidney when administered at a dose of 120 μg kg.2Topical application of ochratoxin A (80 μg mouse) induces DNA damage, cell cycle arrest at the G0 G1phase, and apoptosis in mouse skin cells.1It also initiates tumor formation in a two-stage mouse skin tumorigenesis model. Ochratoxin A has been found as a contaminant in a variety of foods.3

Racecadotril-d5 is intended for use as an internal standard for the quantification of racecadotril by GC- or LC-MS. Racecadotril is a prodrug form of the neprilysin (NEP) inhibitor thiorphan. In vivo, racecadotril reduces or prevents castor oil-induced diarrhea without delaying intestinal transit in rats when administered at doses of 80 or 100 mg kg, respectively. It also decreases the duration of diarrhea and increases body weight gain in a neonatal gnotobiotic pig model of human rotavirus-induced diarrhea. Formulations containing racecadotril have been used in the treatment of acute diarrhea.

Oxaliplatin-d10 is intended for use as an internal standard for the quantification of oxaliplatin by GC- or LC-MS. Oxaliplatin is a platinum-containing DNA-crosslinking agent. It induces the formation of DNA inter- and intrastrand crosslinks and DNA-protein adducts, inhibits DNA and RNA synthesis, and induces apoptosis in cancer cells. Oxaliplatin is cytotoxic to cisplatin-sensitive A2780(1A9) and KB-3-1 cells and cisplatin-resistant A2780-E(80) and KB-CP20 cells (IC50s = 0.12, 0.39, 4.7, and 2.7 µM, respectively). It reduces tumor growth in an HCCLM3 mouse xenograft model when administered at doses of 5 or 10 mg kg once per week. Formulations containing oxaliplatin have been used in the treatment of advanced colorectal cancer and as adjuvants in stage III colon cancer.