9-Chloronaphtho[1,2-b]thiophen-3(2H)-one with 2-Chloro-3H-indol-3-one?condensation.
Properties and Applications
green gray to black. In concentrated sulfuric acid for black; In the basic insurance powder solution for yellow green, In the acidic insurance powder solution is black.
![2-(9-Chloro-3-oxonaphtho[1,2-b]thiophen-2(3H)-ylidene)-1H-indol-3(2H)-one Structure](/CAS/GIF/6424-66-4.gif)