7,12-DIMETHYLBENZ[A]ANTHRACENE
Product Name 7,12-DIMETHYLBENZ[A]ANTHRACENE
CAS57-97-6
MFC20H16
MW256.34
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MassMS-NW-6912 7,12-dimethylbenz(a)anthracene C20H16 (Mass of molecular ion: 256)
Source Temperature: 230 °C Sample Temperature: 130 °C Direct, 75 eV
27.0 1.3 39.0 1.4 51.0 1.4 63.0 1.5 75.0 1.3 77.0 1.1 87.0 1.1 88.0 1.0 100.0 1.6 101.0 2.4 106.5 2.1 107.5 1.8 112.0 2.3 112.5 1.0 113.0 7.0 113.5 1.8 114.0 3.1 118.5 2.7 119.0 3.3 119.5 11.8 120.0 11.4 120.5 5.9 121.0 1.1 125.0 3.6 125.5 1.1 126.0 6.1 126.5 1.9 127.0 4.8 127.5 1.2 128.0 6.5 128.5 1.3 150.0 1.0 152.0 1.0 176.0 1.0 187.0 1.2 189.0 1.3 200.0 1.4 202.0 1.7 213.0 2.1 215.0 3.3 224.0 1.7 225.0 1.3 226.0 5.9 227.0 2.7 228.0 2.8 229.0 2.5 237.0 3.2 238.0 2.2 239.0 29.2 240.0 23.2 241.0 42.7 242.0 9.1 243.0 1.4 250.0 3.7 251.0 1.8 252.0 7.5 253.0 5.5 254.0 4.5 255.0 11.0 256.0 100.0 257.0 22.1 258.0 2.6
400 MHz in CDCl3
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1H NMR 399.65 MHz C20 H16 11.1 mg : 0.5 ml CDCl3 7,12-dimethylbenz(a)anthracene 
Assign. Shift(ppm)
A 8.456 B *1 8.36 C *1 8.34 D 8.015 E 7.805 F *2 7.62 G *2 7.61 J 7.55 K *3 7.56 L *3 7.54 M 3.334 N 3.047 B,C,F,G,K AND L WERE CONFIRMED BY LAOCN PROGRAM.
Hz ppm Int.3385.01 8.470 86 3383.06 8.466 53 3381.35 8.461 45 3380.74 8.460 46 3378.54 8.454 75 3377.69 8.452 60 3375.61 8.447 96 3345.70 8.372 96 3345.09 8.371 108 3343.26 8.366 143 3338.50 8.354 71 3336.30 8.349 183 3335.69 8.347 226 3335.08 8.346 187 3332.89 8.340 85 3328.25 8.328 155 3326.42 8.324 132 3325.68 8.322 114 3208.25 8.028 282 3198.97 8.005 311 3124.51 7.819 107 3121.95 7.812 77 3120.97 7.810 81 3119.51 7.806 67 3117.19 7.800 80 3115.36 7.796 132 3057.62 7.651 43 3055.91 7.647 62 3051.03 7.635 149 3049.32 7.630 129 3047.61 7.626 62 3046.14 7.623 163 3043.58 7.616 326 3041.02 7.610 152 3039.55 7.606 70 3037.84 7.602 135 3036.13 7.597 151 3031.25 7.585 67 3029.54 7.581 58 3026.98 7.575 72 3023.93 7.567 211 3021.97 7.562 223 3020.14 7.557 273 3016.48 7.548 389 3014.65 7.544 213 3012.82 7.539 316 3010.74 7.534 169 3005.86 7.522 48 1332.64 3.335 838 1217.90 3.048 1000
in CDCl3
KBr disc
nujol mull
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