Mass

MS-NW-7629          
7,8-dihydroxy-6-methoxycoumarin
C10H8O5             (Mass of molecular ion:    208)

   Source Temperature: 210 °C
   Sample Temperature: 160 °C
   Direct, 75 eV

      15.0       5.3
      26.0       1.6
      27.0       5.8
      28.0       1.4
      29.0       8.1
      31.0       1.3
      37.0       3.2
      38.0       4.1
      39.0       8.3
      40.5       1.0
      41.0       1.3
      42.0       1.0
      49.0       2.3
      50.0       9.6
      51.0      19.4
      52.0      12.7
      53.0      14.4
      54.0       3.1
      55.0       3.4
      58.0       1.4
      59.5       1.5
      61.0       3.2
      62.0       5.9
      63.0      10.8
      64.0       3.5
      65.0       4.8
      66.0       4.5
      67.0       2.1
      69.0       3.9
      74.0       2.1
      75.0       2.6
      76.0       1.7
      77.0       3.2
      78.0       2.6
      79.0       9.8
      80.0       6.0
      81.0      34.6
      82.0       2.4
      85.0       1.1
      90.0       1.3
      91.0       3.9
      92.0       3.2
      93.0       1.5
      94.0       1.0
      95.0       6.3
      96.0       4.9
     104.0       2.0
     105.0       1.3
     106.0       2.0
     108.0       3.3
     109.0      31.3
     110.0       2.6
     119.0       3.2
     120.0       1.1
     121.0       1.1
     123.0       5.7
     124.0       3.1
     133.0       1.9
     134.0       4.7
     136.0       1.4
     137.0      29.6
     138.0       2.6
     147.0       1.7
     150.0       1.8
     151.0       2.8
     152.0       7.5
     160.0       1.3
     161.0       1.8
     162.0       1.5
     165.0      22.6
     166.0       2.4
     178.0       2.3
     179.0       1.1
     180.0      23.5
     181.0       2.5
     190.0       1.4
     193.0      36.0
     194.0       4.1
     207.0       2.3
     208.0     100.0
     209.0      11.9
     210.0       1.8

Parameter ppm Hz D(A) 9.5 D(B) 7.894 D(D) 6.235 J(B,D) 9.4 D(C) 6.800 D(E) 3.894

     Hz     ppm     Int.

   2849.98   9.500     25
   2372.97   7.910    246
   2363.62   7.879    255
   2040.00   6.800    384
   1875.17   6.251    255
   1865.82   6.219    246
   1168.17   3.894   1000