5-chloro-7-methoxy-4-methyl phenol indolenine?and 4-Chloronaphthalene-1,2-dione?condensation, or 4-Methyl-5-chloro-7-methoxy-3-indolinone and 4-Chloro-1-naphthol condensation (BIOS 983).
Properties and Applications
blue to navy blue. In concentrated sulfuric acid to blue light green; In concentrated nitric acid for blue green to brown light yellow, In the basic insurance powder solution for yellow; In the acidic insurance powder solution for pale yellow.