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MassMS-NW-5462 4-methoxy-3-buten-2-one C5H8O2 (Mass of molecular ion: 100)
Source Temperature: 250 °C Sample Temperature: 190 °C Reservoir, 75 eV
14.0 2.4 15.0 11.0 26.0 3.5 27.0 11.1 28.0 2.6 29.0 8.7 31.0 8.3 38.0 1.3 39.0 3.2 41.0 1.8 42.0 10.3 43.0 36.5 44.0 1.1 47.0 1.5 53.0 4.5 54.0 1.2 55.0 1.5 57.0 2.4 58.0 1.4 59.0 5.0 69.0 2.6 71.0 6.0 75.0 6.3 85.0 100.0 86.0 4.8 100.0 13.8 101.0 2.4 117.0 1.2
90 MHz in CDCl3
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1H NMR 89.56 MHz C5 H8 O2 0.04 ml : 0.5 ml CDCl3 4-methoxy-3-buten-2-one 
Assign. Shift(ppm)
A 7.574 B 5.590 C 3.713 D 2.192 J(A,B)=12.9HZ. J(A,C)=0.4HZ.
Hz ppm Int.685.56 7.655 91 685.19 7.651 92 672.69 7.512 104 672.31 7.507 105 506.75 5.659 132 493.94 5.516 115 332.75 3.716 729 196.38 2.193 1000 195.31 2.181 151
in CDCl3
liquid film
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