Mass

MS-IW-7266          
(9R-cis)-10-ethoxy-9-hydroxy-8,8-dimethyl-9,10-dihydropyrano(2,3-H)chromen-2(8H)-one
C16H18O5            (Mass of molecular ion:    290)

   Source Temperature: 160 °C
   Sample Temperature: 140 °C
   Direct, 75 eV

      15.0       1.5
      17.0       1.5
      18.0       7.9
      19.0       1.1
      26.0       1.8
      27.0       7.3
      28.0       3.7
      29.0       5.6
      30.0       1.8
      31.0      34.1
      38.0       1.6
      39.0       6.7
      40.0       1.1
      41.0      15.5
      42.0       4.9
      43.0       9.6
      44.0       1.1
      45.0      23.4
      46.0      11.4
      50.0       2.7
      51.0       7.7
      52.0       2.4
      53.0       2.8
      55.0       2.1
      57.0       2.3
      59.0       5.2
      62.0       2.1
      63.0       9.1
      64.0       4.9
      65.0       5.6
      66.0       1.4
      69.0      22.0
      70.0       4.4
      71.0       1.2
      72.0       2.2
      72.5       1.5
      74.0       1.7
      75.0       3.2
      76.0       6.0
      77.0       5.3
      78.0       2.9
      79.0       2.9
      80.0       1.6
      87.0       3.3
      89.0       7.1
      90.0       4.8
      91.0       7.2
      92.0       2.8
      92.5       1.0
      93.0       1.9
     101.0       2.5
     102.0      11.8
     103.0       2.5
     105.0       2.2
     106.0       1.2
     107.0       3.3
     108.0       6.6
     115.0       3.2
     116.0       1.0
     117.0       3.4
     118.0       4.9
     119.0       2.9
     127.0       1.3
     128.0       2.4
     129.0       2.1
     130.0       6.9
     131.0       3.8
     133.0       1.6
     134.0      17.4
     135.0       3.0
     144.0       1.2
     145.0       6.5
     146.0       8.2
     147.0       6.9
     148.0       6.4
     149.0       1.0
     155.0       1.0
     157.0       1.9
     158.0       4.2
     159.0       4.3
     160.0       1.9
     161.0       2.3
     162.0      34.7
     163.0       4.2
     171.0       2.7
     172.0       1.2
     173.0      25.7
     174.0      10.8
     175.0      21.6
     176.0      17.1
     177.0       1.9
     181.0       1.4
     185.0       2.3
     186.0       6.3
     187.0      10.5
     188.0       7.1
     189.0      11.9
     190.0      36.6
     191.0      52.3
     192.0       6.1
     197.0       3.8
     198.0       1.5
     199.0      10.3
     200.0       2.4
     201.0     100.0
     202.0      15.3
     203.0       7.5
     204.0       1.0
     213.0      14.0
     214.0       2.5
     215.0       3.7
     216.0      39.1
     217.0       5.9
     218.0      80.1
     219.0      46.1
     220.0       6.2
     226.0       1.0
     228.0       2.8
     229.0       3.2
     244.0      97.0
     245.0      17.0
     246.0       2.4
     290.0      30.2
     291.0       5.9