A water soluble dye which contains a group of Formula : ##STR1## The dyes of Formula can be used to dye materials including {HEAD ~ natural and artificial textile materials} such as {TAIL ~ wool}, silk, polymides and modified polyacrylonitrile fibers 
such as
A water soluble dye which contains a group of Formula : # # STR1 # # The dyes of Formula can be used to dye materials including { HEAD ~ natural and artificial textile materials } such as { TAIL ~ wool } , silk , polymides and modified polyacrylonitrile fibers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH