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