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