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网站主页CAS数据库列表 389-08-2更多图谱萘啶酸(389-08-2)红外图谱(IR2)

萘啶酸

产品名称 萘啶酸

CAS号389-08-2

分子式C12H12N2O3

分子量232.24

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  • Mass

    MS-NW-6855          
    1-ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid
    C12H12N2O3          (Mass of molecular ion:    232)
    

       Source Temperature: 210 °C
       Sample Temperature: 160 °C
       Direct, 75 eV
    

          18.0       1.9
          27.0       4.4
          28.0       2.4
          29.0       2.6
          38.0       1.3
          39.0       4.0
          40.0       1.0
          41.0       1.0
          42.0       1.7
          44.0       1.8
          50.0       1.3
          51.0       3.0
          52.0       3.2
          53.0       5.6
          62.0       1.5
          63.0       4.2
          64.0       3.4
          65.0       4.0
          66.0       1.5
          75.0       1.1
          76.0       2.6
          77.0       4.7
          78.0       2.5
          79.0       1.4
          80.0       1.1
          89.0       2.4
          90.0       2.0
          91.0       2.4
          92.0       4.8
          93.0       2.7
         102.0       1.4
         103.0       1.6
         104.0       6.0
         105.0       2.2
         107.0       1.1
         116.0       1.5
         117.0       2.3
         118.0       1.4
         119.0       1.3
         120.0       1.4
         129.0       1.2
         130.0       1.2
         131.0       7.0
         132.0      13.0
         133.0       2.0
         145.0       7.3
         146.0       1.1
         159.0       7.2
         160.0      22.4
         161.0       3.2
         173.0       9.4
         174.0       1.2
         187.0       6.7
         188.0     100.0
         189.0      13.4
         190.0       1.1
         232.0       6.8
         233.0       1.0
    

90 MHz in DMSO-d6

400 MHz in DMSO-d6


  • 1H NMR 89.56 MHz
    C12 H12 N2 O3 0.035 g : 0.5 ml DMSO-d6
    1-ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 14.87 B 9.174 C 8.602 D 7.597 E 4.64 F 2.712 G 1.425 J(C,D)=8.2HZ.

         Hz     ppm     Int.
    

       1331.62  14.869    117
        821.68   9.175    328
        774.86   8.652    125
        766.72   8.561    150
        684.28   7.641    161
        675.92   7.548    133
        419.69   4.687    172
        412.55   4.607    185
        242.93   2.713   1000
        134.55   1.503    219
        127.51   1.424    494
        120.48   1.346    195
    


  • 1H NMR 399.65 MHz
    C12 H12 N2 O3 saturated in DMSO-d6
    1-ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 14.9 B 9.196 C 8.620 D 7.611 E 4.650 F 2.718 G 1.423

         Hz     ppm     Int.
    

       5968.99  14.936     31
       5965.57  14.927     57
       5964.84  14.926     60
       5964.11  14.924     59
       3675.29   9.197    328
       3449.46   8.632    157
       3441.41   8.612    167
       3045.90   7.622    156
       3037.84   7.602    150
       1869.38   4.678     59
       1862.06   4.660    190
       1854.98   4.642    193
       1847.90   4.624     60
       1086.43   2.719   1000
        575.93   1.442    214
        573.24   1.435     37
        568.85   1.424    471
        565.67   1.416     34
        565.19   1.415     32
        561.77   1.406    212
    

in DMSO-d6



KBr disc



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