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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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