(8S,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-one

Mass

MS-IW-3363          
1,4-cholestadien-3-one
C27H42O             (Mass of molecular ion:    382)

   Source Temperature: 150 °C
   Sample Temperature: 140 °C
   Direct, 75 eV

      29.0       2.0
      41.0       5.9
      43.0       8.4
      53.0       1.0
      55.0       7.5
      57.0       5.4
      67.0       3.6
      69.0       4.5
      71.0       2.7
      77.0       2.1
      79.0       3.8
      81.0       5.5
      83.0       2.4
      91.0       4.9
      92.0       1.5
      93.0       5.3
      94.0       1.5
      95.0       5.8
      97.0       1.5
     105.0       2.8
     106.0       1.0
     107.0       5.0
     108.0       3.3
     109.0       4.0
     117.0       1.1
     119.0       2.1
     120.0       1.3
     121.0      16.9
     122.0     100.0
     123.0      10.3
     131.0       1.3
     133.0       2.6
     134.0       4.7
     135.0       7.6
     136.0       1.2
     145.0       1.6
     147.0       7.0
     148.0       1.2
     149.0       2.3
     159.0       2.1
     160.0       1.4
     161.0       2.3
     173.0       3.1
     174.0       1.3
     175.0       1.0
     188.0       1.2
     193.0       1.0
     227.0       1.8
     247.0       3.5
     260.0       1.2
     261.0       3.0
     269.0       4.5
     270.0       1.2
     367.0       1.2
     382.0      12.8
     383.0       3.9