2,7-Dihydroxyspiro[9H-xanthene-9,1'(3'H)-isobenzofuran]-3'-one(596-04-3) IR1

Mass

MS-IW-4808          
2',7'-dihydroxyspiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one
C20H12O5            (Mass of molecular ion:    332)

   Source Temperature: 190 °C
   Sample Temperature: 250 °C
   Direct, 75 eV

      17.0       1.1
      18.0       5.5
      28.0       2.5
      39.0       1.0
      44.0       2.6
      50.0       1.1
      51.0       1.5
      63.0       2.4
      74.0       1.1
      75.0       3.0
      76.0       5.6
      77.0       1.6
      87.0       1.7
      88.0       6.4
      88.5       1.2
      89.0       1.6
      93.5       1.6
      94.0       1.5
      94.5       1.7
     100.0       3.9
     100.5       1.8
     101.0       8.5
     101.5       1.8
     102.0       1.1
     102.5       1.7
     103.0       1.2
     104.0       1.8
     106.0       1.5
     106.5       5.6
     107.0       2.9
     114.5       1.0
     115.0       2.0
     115.5       1.4
     121.0       4.6
     121.5       1.1
     129.0       4.0
     129.5       1.6
     135.0       4.2
     135.5       2.2
     139.0       1.3
     143.5       5.4
     144.0       3.2
     150.0       1.9
     151.0       2.1
     152.0       2.2
     163.0       1.3
     166.0       4.3
     174.0       1.1
     175.0       1.5
     176.0       4.9
     177.0       1.4
     187.0       1.4
     189.0       2.4
     200.0       4.2
     201.0       4.0
     202.0      12.4
     203.0       3.5
     205.0       2.2
     213.0       5.4
     214.0       1.4
     215.0       1.6
     229.0       2.6
     230.0       1.2
     231.0       2.8
     240.0       1.4
     242.0       3.2
     243.0       1.8
     258.0      10.9
     259.0       8.8
     260.0       2.0
     270.0       1.2
     271.0      82.0
     272.0      17.1
     273.0       2.2
     275.0       1.3
     287.0     100.0
     288.0      67.1
     289.0      12.5
     290.0       3.3
     331.0       3.5
     332.0      38.7
     333.0       8.8
     334.0       1.4