8-ACETYL DIMETHOXYCOUMARIN(3949-36-8) MS
Product Name8-ACETYL DIMETHOXYCOUMARIN
CAS3949-36-8
Molecular FormulaC11H8O3
Molecular Weight188.18
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MassMS-IW-1319 3-acetylcoumarin C11H8O3 (Mass of molecular ion: 188)
Source Temperature: 100 °C Sample Temperature: 90 °C Direct, 75 eV
39.0 2.3 43.0 14.4 50.0 1.0 51.0 1.9 62.0 1.9 63.0 4.9 75.0 1.6 77.0 1.0 89.0 9.3 90.0 3.0 101.0 9.4 102.0 1.0 118.0 5.5 145.0 11.0 146.0 3.7 173.0 100.0 174.0 11.1 175.0 1.2 188.0 56.7 189.0 7.5
400 MHz in CDCl3
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1H NMR 399.65 MHz C11 H8 O3 0.036 g : 0.5 ml CDCl3 3-acetylcoumarin 
Assign. Shift(ppm)
A 8.513 B 7.67 C 7.67 D 7.38 E 7.36 F 2.729 CONFIRMED BY LAOCN PROGRAM
Hz ppm Int.3402.59 8.514 191 3402.22 8.514 196 3071.66 7.686 68 3069.95 7.682 76 3068.24 7.678 73 3066.04 7.672 34 3064.45 7.668 122 3062.99 7.665 64 3062.38 7.663 94 3060.67 7.659 85 3057.13 7.650 77 3055.54 7.646 40 2951.66 7.386 99 2950.93 7.384 78 2948.00 7.377 81 2946.90 7.374 57 2943.73 7.366 50 2942.75 7.364 75 2942.02 7.362 66 2940.80 7.359 87 2940.19 7.357 81 2939.45 7.356 84 2932.98 7.339 53 2931.88 7.337 48 1090.58 2.729 1000
in CDCl3
KBr disc
nujol mull
