It is also an object of the invention to provide agents for {HEAD ~ the oxidative dyeing} of {TAIL ~ hair} that are based upon bis alkanols as coupling components 
of
It is also an object of the invention to provide agents for { HEAD ~ the oxidative dyeing } of { TAIL ~ hair } that are based upon bis alkanols as coupling components
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH