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 | 3,5-Dihydroxybenzoic acid |  | 3,4-Dihydroxybenzoic acid |  | 2,5-Dihydroxybenzoic acid |  | 2,3-Dihydroxybenzoic acid |  | 3,5-Dihydroxybenzoic acid |  | 2,4-Dihydroxybenzoic acid |  | 2,6-Dihydroxybenzoic acid |  | 3,4-Dihydroxybenzophenone |  | 2,4-Dihydroxybenzophenone |  | 4,4-Dihydroxybenzophenone |  |  | 
      
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              | Chemical Name: | 3,4-Dihydroxybenzenesulfonic acid monoammonium salt |  
              | Synonyms: |  |  
              | CAS#: | 6099-56-5 |  
              | Molecular formula: | C6H5O5S.NH4 |  
              | Molecular weight: | 207.20 |  
              | Molecular Structure: |  |  |  |