| abstract |
A compound of the formula <IMAGE> in which X represents chlorine or bromine, Y and Z each represent methyl or ethyl, and n stands for the integer 1 or 2, said compound being useful as a navy blue dye for the dyeing or printing synthetic fibrous materials, preferably polyester fibers, in aqueous baths, suitably in the form of dyestuff preparations containing dispersing agents, and also useful for dyeing fibrous materials in organic solvents, such as trichloroethylene or methanol. |