1-Methoxycarbonylethylidenetriphenylphosphorane(2605-68-7) IR2

Mass

MS-KW-0312          
methyl 2-(triphenylphosphoranediyl)propionate
C22H21O2P           (Mass of molecular ion:    348)

   Source Temperature: 190 °C
   Sample Temperature: 140 °C
   Direct, 75 eV

      39.0       1.1
      47.0       5.9
      50.0       1.9
      51.0      12.1
      52.0       1.0
      77.0      20.2
      78.0       2.4
      95.0       2.2
     107.0       1.9
     115.0       1.3
     123.0       1.0
     128.0       1.6
     129.0       1.0
     133.0       1.3
     139.0       1.0
     151.0       1.4
     152.0       9.0
     153.0       4.2
     154.0       4.5
     170.0       1.5
     171.0       1.4
     173.0       1.5
     183.0      14.6
     184.0       2.1
     185.0      10.1
     186.0       1.4
     199.0      18.0
     200.0       2.7
     201.0      18.5
     202.0       2.8
     277.0     100.0
     278.0      52.9
     279.0       8.8