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          Oxalic acid
          Product name: Oxalic acid
          CAS NO: 144-62-7
          Molecular weight: 90.03548  
          EC NO: 205-634-3
          Molecular formula: C2H2O4
          InChI: InChI=1/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)/p-2
          Structural formula:
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