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生物活性：5-(Pyridin-4-yl)-1,3,4-oxadiazole-2-thiol (Compound 3n) 是抗菌剂和抗氧化剂，可抑制 Escherichia coli 和 Staphylococcus epidermidis，MIC 分别为 8 和 4 μg/mL。5-(Pyridin-4-yl)-1,3,4-oxadiazole-2-thiol 具有抗氧化活性，使用清除 DPPH 自由基方法测定的 IC₅₀ 为 17.47 μM^[1]。

5-(Pyridin-4-yl)-1,3,4-oxadiazole-2-thiol (Compound 3n) is an antimicrobial and antioxidant agent, that inhibits Escherichia coli and Staphylococcus epidermidis, with MIC of 8 and 4 μg/mL. 5-(Pyridin-4-yl)-1,3,4-oxadiazole-2-thiol exhibits antioxidant activity with IC₅₀ of 17.47 μM using DPPH free radical-scavenging method^[1].