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MassMS-NW-7395 piperonyl isobutyrate C12H14O4 (Mass of molecular ion: 222)
Source Temperature: 210 °C Sample Temperature: 190 °C Reservoir, 75 eV
27.0 3.9 28.0 1.2 39.0 4.3 41.0 5.0 43.0 16.8 50.0 2.3 51.0 9.6 52.0 1.0 53.0 1.1 63.0 2.5 65.0 5.2 67.0 2.1 71.0 4.1 73.0 1.2 76.0 3.7 77.0 12.8 78.0 2.0 79.0 2.2 93.0 4.6 104.0 2.9 105.0 5.4 121.0 1.5 122.0 2.5 123.0 2.4 134.0 13.4 135.0 100.0 136.0 9.4 149.0 2.0 150.0 2.0 151.0 2.3 152.0 25.7 153.0 2.5 222.0 28.3 223.0 4.0
90 MHz in CDCl3
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1H NMR 89.56 MHz C12 H14 O4 0.05 ml : 0.5 ml CDCl3 piperonyl isobutyrate 
Assign. Shift(ppm)
A 6.9 to 6.74 B 5.914 C 4.990 D 2.543 E 1.165
Hz ppm Int.614.81 6.865 38 611.88 6.833 133 611.50 6.828 130 610.44 6.816 206 610.13 6.813 206 608.06 6.790 250 606.69 6.775 416 529.75 5.916 932 447.00 4.992 538 236.38 2.640 54 229.50 2.563 73 222.44 2.484 67 215.63 2.408 37 107.69 1.203 1000 105.56 1.179 80 100.75 1.125 854
in CDCl3
liquid film
