The synthesis of a series of monoazo disperse dyes derived from 4-, 5-
, 6- and 7-nitro-2-aminobenzothiazoles is reported and the colour of t
he dyes evaluated with respect to the orientation of the nitro group.
Similar data are reported for dyes derived from 4,6-, 5,6- and 5,7-din
itro-2-aminobenzothiazoles.