3,4-dihydro-5,6,7-trimethoxy-2-naphthoic acid

Mass

MS-IW-0779          
5,6,7-trimethoxy-3,4-dihydro-2-naphthoic acid
C14H16O5            (Mass of molecular ion:    264)

   Source Temperature: 150 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      18.0       1.5
      77.0       1.5
      89.0       1.6
      90.0       1.1
      91.0       2.1
     102.0       1.0
     103.0       1.1
     115.0       3.1
     117.0       2.9
     118.0       1.9
     127.0       1.9
     128.0       1.0
     131.0       1.6
     132.0       1.2
     133.0       1.3
     143.0       1.5
     144.0       1.0
     145.0       5.0
     146.0       1.7
     159.0       1.9
     160.0       1.8
     161.0       3.8
     162.0       1.0
     173.0       2.6
     174.0       2.2
     175.0       3.3
     176.0       1.1
     181.0       1.4
     188.0       5.3
     189.0       9.2
     190.0       2.1
     203.0       2.6
     204.0       2.5
     205.0       1.1
     217.0       2.2
     219.0       9.6
     220.0       1.5
     221.0       3.6
     232.0       1.1
     233.0       2.4
     247.0       1.3
     249.0      35.9
     250.0       5.3
     254.0       1.0
     262.0       1.3
     263.0       2.1
     264.0     100.0
     265.0      15.3
     266.0       2.6

Assign. Shift(ppm) A 11. B 7.587 C 6.631 D *1 3.916 E *1 3.869 F *1 3.861 G 2.853 J 2.577

     Hz     ppm     Int.

   3033.42   7.591     70
   3032.14   7.587    126
   3030.67   7.584     70
   2650.24   6.632    181
   1565.34   3.917    992
   1554.35   3.890     32
   1546.47   3.870    714
   1543.18   3.862   1000
   1535.30   3.842     29
   1149.55   2.877     63
   1141.31   2.856    128
   1132.52   2.834     92
   1037.27   2.596     59
   1035.99   2.593     60
   1028.48   2.574    103
   1027.20   2.571     84
   1020.05   2.553     46