Chemistry is traditionally divided into organic and inorganic chemistry. HPLC of Formula: C10H9NO3, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 57805-85-3
A series of 3-substituted-benzofuran-2-carboxylic esters was synthesized and evaluated for biological activity as ischemic cell death inhibitors in H9c2 cells and rat primary cardiac myocytes under conditions of oxygen and glucose deprivation. The introduction of a sulfur atom at the three-position substituent of the benzofuran ring markedly improved ischemic cell death inhibitory potency. In particular, 3-[2-(4-nitro-phenylsulfanyl)-acetylamino]-benzofuran-2- carboxylic acid ester (10) (EC50 = 0.532 muM, cell death = 6.18%) and 4-chloro-3-[3-(pyridin-2-ylsulfanyl)-propionylamino]-benzofuran-2-carboxylic ester (18) (EC50 = 0.557 muM, cell death = 7.02%) were shown to be the most potent in this series of benzofuran analogs.
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Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H3081O – PubChem