574-84-5

秦皮素(574-84-5)核磁图(¹HNMR)

产品名称:秦皮素

CAS:574-84-5

分子式:C10H8O5

分子量: 208.17

Mass

MS-NW-7629          
7,8-dihydroxy-6-methoxycoumarin
C10H8O5             (Mass of molecular ion:    208)

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

      15.0       5.3
      26.0       1.6
      27.0       5.8
      28.0       1.4
      29.0       8.1
      31.0       1.3
      37.0       3.2
      38.0       4.1
      39.0       8.3
      40.5       1.0
      41.0       1.3
      42.0       1.0
      49.0       2.3
      50.0       9.6
      51.0      19.4
      52.0      12.7
      53.0      14.4
      54.0       3.1
      55.0       3.4
      58.0       1.4
      59.5       1.5
      61.0       3.2
      62.0       5.9
      63.0      10.8
      64.0       3.5
      65.0       4.8
      66.0       4.5
      67.0       2.1
      69.0       3.9
      74.0       2.1
      75.0       2.6
      76.0       1.7
      77.0       3.2
      78.0       2.6
      79.0       9.8
      80.0       6.0
      81.0      34.6
      82.0       2.4
      85.0       1.1
      90.0       1.3
      91.0       3.9
      92.0       3.2
      93.0       1.5
      94.0       1.0
      95.0       6.3
      96.0       4.9
     104.0       2.0
     105.0       1.3
     106.0       2.0
     108.0       3.3
     109.0      31.3
     110.0       2.6
     119.0       3.2
     120.0       1.1
     121.0       1.1
     123.0       5.7
     124.0       3.1
     133.0       1.9
     134.0       4.7
     136.0       1.4
     137.0      29.6
     138.0       2.6
     147.0       1.7
     150.0       1.8
     151.0       2.8
     152.0       7.5
     160.0       1.3
     161.0       1.8
     162.0       1.5
     165.0      22.6
     166.0       2.4
     178.0       2.3
     179.0       1.1
     180.0      23.5
     181.0       2.5
     190.0       1.4
     193.0      36.0
     194.0       4.1
     207.0       2.3
     208.0     100.0
     209.0      11.9
     210.0       1.8

parameter in DMSO-d6

¹H NMR	300 MHz
C₁₀ H₈ O₅	0.031 g : 0.5 ml DMSO-d₆
7,8-dihydroxy-6-methoxycoumarin

    Parameter     ppm  Hz

      D(A)         9.5
     
      D(B)         7.894
      D(D)         6.235
       J(B,D)          9.4
     
      D(C)         6.800
     
      D(E)         3.894

     Hz     ppm     Int.

   2849.98   9.500     25
   2372.97   7.910    246
   2363.62   7.879    255
   2040.00   6.800    384
   1875.17   6.251    255
   1865.82   6.219    246
   1168.17   3.894   1000

in DMSO-d6