3-ethyl-5-(3-ethyl-3H-benzothiazol-2-ylidene)-2-methyl-4-oxo-4,5-dihydro-thiazolium; chloride 、 alkaline earth salt of/the/ methylsulfuric acid 在
乙醇 作用下,
生成 1-[3-ethyl-5-(3-ethyl-3
H-benzothiazol-2-yliden)-4-oxo-4,5-dihydro-thiazol-2-yl]-3-(3-ethyl-benzothiazol-2-yl)-2-methyl trimethinium ; iodide