Stable gamma-modification of a benzisothiazole azo dyestuff

摘要

The azo dyestuff of the formula having the interplanar spacings D/ ANGSTROM 3.13, 3.36, 4.85, 9.26 and 13.94 for the five strongest lines having the relative intensity use 98, 89, 82, 100 and 87 is distinguished, compared to known modifications by an increased dye bath stability.