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MassMS-NW-1639 p-tert-butylbenzoic acid C11H14O2 (Mass of molecular ion: 178)
Source Temperature: 240 °C Sample Temperature: 180 °C Reservoir, 75 eV
27.0 2.6 29.0 2.7 39.0 7.1 41.0 19.1 45.0 1.8 50.0 2.5 51.0 4.8 52.0 1.0 53.0 1.2 57.0 1.2 58.0 1.2 63.0 2.1 65.0 3.2 72.0 1.1 74.0 1.0 75.0 1.5 76.0 1.3 77.0 7.7 78.0 1.6 79.0 6.8 89.0 1.2 90.0 1.1 91.0 23.6 92.0 1.8 102.0 1.1 103.0 2.9 105.0 2.4 107.0 3.6 115.0 4.0 116.0 1.1 117.0 3.3 118.0 2.0 119.0 1.7 123.0 1.3 135.0 22.2 136.0 2.2 145.0 1.8 163.0 100.0 164.0 11.3 165.0 1.0 178.0 21.0 179.0 2.6
90 MHz in CDCl3
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1H NMR 89.56 MHz C11 H14 O2 0.046 g : 0.5 ml CDCl3 p-tert-butylbenzoic acid 
Assign. Shift(ppm)
A 10. B 8.047 C 7.497 D 1.355
Hz ppm Int.725.72 8.104 59 717.35 8.010 68 716.92 8.005 71 675.05 7.538 80 666.33 7.441 52 121.34 1.355 1000 119.37 1.333 53
in CDCl3
CCl4 solution
KBr disc
nujol mull
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