Reaction of chloroform, resorcinol and strong base
Well, turns out to be, the reaction proceeds to product a red colored species.


  Reaction with chloroform in the alkaline medium
  
  Dissolve 0.1 g in 1 ml of water R, add 1 ml of strong sodium hydroxide
  solution R and 0.1 ml of chloroform R, heat and allow to cool. An
  intense, deep-red colour develops which becomes pale yellow on the addition of a slight excess of hydrochloric acid R.