3,4-Difluorobenzonitrile  
                              Ethyl nicotinate  
                              Diphenyl chlorophosphate(DPCP)  
                              Monophenyl dichlorophsphate(MPCP)  
                              4,4'-Sulfonyldiphenol  
                              Dihydroxydiphenylsulfone  
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                          Dihydroxydiphenylsulfone
                          Product name: Dihydroxydiphenylsulfone
                          CAS No.: 5397-34-2
                          EINECS No.: 226-421-1
                          Molecular formula: C12H10O4S
                          Molecular weight: 250.2704
                          Molecular structure:
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