Calconcarboxylic acid

Mass

MS-NW-0648          
2,2'-dihydroxy-4'-sulfo-1,1'-azonaphthalene-3-carboxylic acid
C21H14N2O7S         (Mass of molecular ion:    438)

   Source Temperature: 220 °C
   Sample Temperature: 300 °C
   Direct, 75 eV

      12.0       1.8
      15.0       1.1
      16.0       4.6
      17.0      15.5
      18.0      66.0
      20.0       4.4
      26.0       1.5
      27.0       5.8
      28.0      36.7
      29.0       2.1
      31.0       1.1
      32.0       3.2
      36.0       2.4
      39.0       3.6
      41.0       5.5
      42.0       1.9
      43.0       4.1
      44.0     100.0
      45.0       1.5
      48.0      20.8
      50.0       1.9
      51.0       1.9
      52.0       1.1
      53.0       1.2
      54.0       1.5
      55.0       4.4
      56.0       2.2
      57.0       3.6
      60.0       1.1
      62.0       1.2
      63.0       2.3
      64.0      45.7
      65.0       1.3
      66.0       2.4
      67.0       2.2
      68.0       1.3
      69.0       2.6
      70.0       1.5
      71.0       1.8
      73.0       1.0
      75.0       1.1
      76.0       1.4
      77.0       1.9
      78.0       1.3
      79.0       1.4
      80.0       4.0
      81.0       1.8
      82.0       1.2
      83.0       2.0
      84.0       1.3
      85.0       1.1
      88.0       1.0
      89.0       1.3
      91.0       2.2
      92.0       1.1
      93.0       1.5
      94.0       1.1
      95.0       1.3
      96.0       1.1
      97.0       1.9
      98.0       1.7
     102.0       1.7
     103.0       1.0
     104.0       1.3
     105.0       1.7
     109.0       1.0
     113.0       2.0
     114.0       3.4
     115.0       7.2
     116.0       2.1
     126.0       1.2
     128.0       1.2
     129.0       1.9
     130.0       1.6
     131.0       1.3
     141.0       1.2
     142.0       2.9
     144.0      12.8
     145.0       1.8
     169.0       2.0
     170.0       2.5
     188.0       1.3
     226.0       1.4
     239.0       1.0
     255.0       1.3
     268.0       2.3
     282.0       1.1
     283.0       1.5
     284.0       2.7
     296.0       1.3
     297.0       1.0
     310.0       1.7
     311.0       3.7
     312.0       4.1
     313.0       1.3
     328.0       1.2