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C6H10CaO4O-H2
C3H5NaO2
C6H5COOH
C6H5COONa
C6H5COOK
C4H6O4Ca
C2H3NaO2
C2H3KO2
C3H5KO2
C14H10O4Zn
C14H10CaO4
 

     
     
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