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

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

CAS69791-82-8

MFC14H16O5

MW264.27


  • 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

400 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C14 H16 O5 0.035 g : 0.5 ml CDCl3
    5,6,7-trimethoxy-3,4-dihydro-2-naphthoic acid
    ChemicalStructure 
        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

in CDCl3



KBr disc



nujol mull



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