Novel addition products of isocyanates with oxyalkylene substituted aminophenol compounds as intermediates for the production of urethane substituted xanthene colorants, {HEAD ~ particularly triphenylmethane derivatives} such as {TAIL ~ rhodarnines}, are provided 
such as
Novel addition products of isocyanates with oxyalkylene substituted aminophenol compounds as intermediates for the production of urethane substituted xanthene colorants , { HEAD ~ particularly triphenylmethane derivatives } such as { TAIL ~ rhodarnines } , are provided
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 REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH