2-OXO-2H-PYRAN-6-CARBOXYLIC ACID(672-67-3)红外图谱(IR1)

Mass

MS-IW-6369          
2-oxo-2H-pyran-6-carboxylic acid
C6H4O4              (Mass of molecular ion:    140)

   Source Temperature: 160 °C
   Sample Temperature: 150 °C
   Direct, 75 eV

      18.0       1.1
      28.0       2.3
      37.0       2.0
      38.0       3.7
      39.0      24.6
      40.0       1.4
      44.0       3.2
      45.0       1.7
      47.5       1.0
      67.0       3.0
      68.0       2.0
      95.0     100.0
      96.0       7.2
     140.0      33.8
     141.0       2.4