Sentence Examples


  • The trioxyanthraquinones - purpurin, anthrapurpurin, anthragallol and flavopurpurin - are also very valuable dyestuffs.
  • In a similar manner anthrapurpurin is prepared by alkali fusion of anthraquinone 2.8 disulphonic acid.
  • Penta-oxyanthraquinones have been obtained from purpurin and anthrapurpurin, while a hexaoxyanthraquinone has been obtained from 1.5 dinitro anthraquinone.
 
 

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