1,4-Dibromo-2,5-dimethylbenzene
Product Name 1,4-Dibromo-2,5-dimethylbenzene
CAS1074-24-4
MFC8H8Br2
MW263.96
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MassMS-NW-8730 2,5-dibromo-p-xylene C8H8Br2 (Mass of molecular ion: 262)
Source Temperature: 120 °C Sample Temperature: 80 °C Direct, 75 eV
17.0 1.3 18.0 7.4 27.0 1.6 38.0 1.5 39.0 3.3 50.0 6.1 51.0 23.6 51.5 2.4 52.0 5.6 53.0 1.7 61.0 1.0 62.0 2.5 63.0 5.2 74.0 2.4 75.0 3.1 76.0 2.9 77.0 14.6 78.0 6.3 80.0 1.3 82.0 1.2 87.0 1.1 89.0 1.1 90.0 1.1 91.0 2.8 91.5 1.1 92.0 1.8 101.0 1.0 102.0 6.5 103.0 19.0 104.0 23.8 105.0 2.8 130.0 1.4 131.0 3.4 132.0 2.8 149.0 2.5 164.0 1.7 182.0 3.3 183.0 49.7 184.0 8.1 185.0 48.5 186.0 5.0 261.0 1.7 262.0 51.1 263.0 8.1 264.0 100.0 265.0 10.5 266.0 49.0 267.0 4.3
400 MHz in CDCl3
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1H NMR 399.65 MHz C8 H8 Br2 0.035 g : 0.5 ml CDCl3 2,5-dibromo-p-xylene 
Assign. Shift(ppm)
A 7.377 B 2.319
Hz ppm Int.2948.24 7.378 270 926.76 2.319 1000
in CDCl3
KBr disc
nujol mull
4880 A,200 M,powder
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