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  Pyridine Derivatives
  Quinoline Derivatives
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  Liquid Crystal Compounds
  Calixarenes
  Different monoformazan and diformazan
 
 
LASER DYES (COUMARIN DERIVATIVES)
   
  7-Hydroxy-4-methyl coumarin(coumarin 4)   [90 – 33 – 5]
  4-Hydroxy coumarin   [1076 – 38 – 6]
   
   
   
   
   
   
   
   
   
   
 
 
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