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