Ninhydrin hydrate

Mass

MS-NW-0422          
ninhydrin
C9H6O4              (Mass of molecular ion:    178)

   Source Temperature: 160 °C
   Sample Temperature: 120 °C
   Direct, 75 eV

      17.0       2.8
      18.0      14.1
      28.0       2.1
      37.0       7.6
      37.5       3.2
      38.0      11.7
      39.0       1.2
      49.0       4.3
      50.0      33.8
      51.0       3.2
      52.0       5.8
      53.0       1.5
      61.0       2.1
      62.0       1.5
      66.0       2.2
      73.0       2.8
      74.0      10.4
      75.0       7.4
      76.0      79.8
      77.0       8.3
     104.0     100.0
     105.0      11.4
     122.0       2.8
     132.0      36.7
     133.0       4.5
     150.0       1.4
     160.0      13.9
     161.0       1.7

Assign. Shift(ppm) A 8.05 to 8.03 B 7.53

     Hz     ppm     Int.

    723.75   8.082     48
    721.06   8.052   1000
    720.00   8.040    563
    719.50   8.034    669
    674.31   7.530    287