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MS-IW-0912 6,7-dimethoxycoumarin C11H10O4 (Mass of molecular ion: 206)
Source Temperature: 130 °C Sample Temperature: 100 °C Direct, 75 eV
50.0 1.3 51.0 3.0 53.0 1.1 55.0 1.8 59.0 1.1 63.0 1.4 69.0 6.9 76.0 1.0 77.0 2.3 79.0 5.6 89.0 1.7 92.0 2.7 95.0 1.0 103.0 1.4 105.0 1.2 107.0 8.0 117.0 1.8 119.0 1.9 120.0 3.7 121.0 1.3 133.0 1.0 135.0 9.8 145.0 2.8 148.0 2.1 149.0 3.3 163.0 17.7 164.0 2.3 178.0 12.9 179.0 1.4 190.0 1.0 191.0 39.7 192.0 6.1 206.0 100.0 207.0 12.0 208.0 1.4
90 MHz in CDCl3
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1H NMR 89.56 MHz C11 H10 O4 0.02 g : 0.5 ml CDCl3 6,7-dimethoxycoumarin Assign. Shift(ppm)
A 7.62 B 6.862 C 6.836 D 6.28 E *1 3.949 F *1 3.922
Hz ppm Int.
687.75 7.680 131 678.38 7.575 152 614.69 6.864 301 612.31 6.837 278 610.06 6.812 41 567.13 6.333 188 557.69 6.228 160 358.75 4.006 42 353.75 3.950 1000 351.31 3.923 970 347.69 3.883 43 346.94 3.874 36 346.44 3.869 32 345.56 3.859 29
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