The analytical standard of benzothiadiazole (BTH) is prepared from Bion 50% WG, and its structure is determined by elemental analysis, ()~1H NMR, IR and HPLC/MS.

• 从Bion 50%25WG中提取有效成分制备了苯并噻二唑(BTH)标样；其结构经1H NMR谱I、R、元素分析和HPLC/MS的确证.