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          Tetrahydrofuran
          Product name: Tetrahydrofuran
          CAS NO: 109-99-9
          Molecular weight: 184.2338 
          EC NO: 203-726-8
          Molecular formula: C4H8O
          InChI: InChI=1/C13H12O/c14-13-11-7-3-1-5-9(11)10-6-2-4-8-12(10)13/h1,3,5,7H,2,4,6,8H2
          Structural formula:
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