Mass

MS-NW-7807          
3,3'-methylenebis(4-hydroxycoumarin)
C19H12O6            (Mass of molecular ion:    336)

   Source Temperature: 230 °C
   Sample Temperature: 200 °C
   Direct, 75 eV

      14.0       1.5
      25.0       1.4
      26.0       9.1
      27.0       4.1
      28.0       1.8
      29.0       2.6
      37.0       8.2
      38.0      19.0
      39.0      21.2
      40.0       1.2
      41.0       2.2
      42.0       4.5
      43.0       1.5
      49.0       2.5
      50.0      17.1
      51.0      14.7
      52.0       3.6
      53.0      15.6
      54.0       3.5
      55.0       2.6
      61.0       6.1
      62.0      13.8
      63.0      44.0
      64.0      39.5
      65.0      23.2
      66.0       3.2
      67.0       1.8
      69.0       4.1
      73.0       1.8
      74.0       6.2
      75.0       5.2
      76.0      11.1
      77.0      12.8
      78.0       2.5
      79.0       1.2
      86.0       1.2
      87.0       1.3
      88.0       1.2
      89.0       4.4
      90.0       2.8
      91.0       3.1
      92.0     100.0
      93.0      16.9
      94.0       1.9
      98.0       1.1
     101.0       1.1
     102.0       3.8
     103.0       2.4
     104.0       5.1
     105.0       4.2
     107.0       1.6
     115.0       3.0
     118.0       2.6
     119.0       1.2
     120.0      55.5
     121.0      45.6
     122.0       3.7
     130.0       1.8
     131.0       3.9
     134.0       3.4
     146.0       5.5
     147.0       2.3
     160.0       1.8
     162.0      26.7
     163.0       3.4
     173.0       1.4
     174.0      22.1
     175.0       6.8
     176.0       1.3
     187.0       8.0
     188.0       3.2
     215.0       9.4
     216.0       1.3
     290.0       1.4
     336.0      19.7
     337.0       4.5