Pyridine is colorless, but older or impure samples can appear yellow. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. Computed Properties of 31181-90-5.
Zhang, Xin-Hui;Bo-Wang;Tao, Yuan-Yuan;Ma, Qin;Wang, Hao-Jie;He, Zhang-Xu;Wu, Hui-Pan;Li, Yi-Han;Zhao, Bing;Ma, Li-Ying;Liu, Hong-Min research published 《 Thiosemicarbazone-based lead optimization to discover high-efficiency and low-toxicity anti-gastric cancer agents》, the research content is summarized as follows. A series of thiosemicarbazone derivatives I [R1 = H, 4-MeO, 2-Br, 3-Br, 4-Br; R2 = H, Me, 2-pyridyl, etc.; R3 = 2-furyl, 3-indolyl, 2-pyridyl, etc.; n = 0, 1, 2] containing different aromatic heterocyclic groups was synthesized and the tridentate donor system of the lead compound was optimized. Most of the target compounds I showed improved antiproliferative activity against MGC803 cells. SAR studies revealed that compound I [R1 = 4-MeO, R2 = Me, R3 = 2-pyridyl, n = 0] displayed significant advantages in inhibition effect with an IC50 value of 0.031μM, and better selectivity between cancer and normal cells than 3-AP and DpC (about 15- and 5-fold improved resp.). Besides, compound I [R1 = 4-MeO, R2 = Me, R3 = 2-pyridyl, n = 0] showed selective antiproliferative activity in not only other cancer cells but also different gastric cancer cell lines. In-depth mechanism studies showed that compound I [R1 = 4-MeO, R2 = Me, R3 = 2-pyridyl, n = 0] could induce mitochondria-related apoptosis which might be related to the elevation of intracellular ROS level, and cause cell cycle arrest at S phase. Moreover, compound I [R1 = 4-MeO, R2 = Me, R3 = 2-pyridyl, n = 0] could evidently suppressed the cell migration and invasion by blocking the EMT (epithelial-mesenchymal transition) process. Consequently, our studies provided a lead optimization strategy of thiosemicarbazone derivatives I which would contribute to discover high-efficiency and low-toxicity agents for the treatment of gastric cancer.
Computed Properties of 31181-90-5, 5-Bromopyridine-2-carbaldehyde is a useful research compound. Its molecular formula is C6H4BrNO and its molecular weight is 186.01 g/mol. The purity is usually 95%.
5-Bromopyridine-2-carbaldehyde is a water soluble organic molecule that has been shown to inhibit the mitochondrial respiratory chain. It is a structural analog of the natural substrate for mitochondrial cytochrome c oxidase, 5-aminolevulinic acid. This compound has been shown to be selective against cancer cells and has anti-viral properties. The photophysical properties of 5-bromopyridine-2-carbaldehyde have been studied extensively. The fluorescence quantum yield of this molecule in aqueous solution is 0.06%., 31181-90-5.