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MassMS-NW-9903 (2-thienyl)glyoxylic acid C6H4O3S (Mass of molecular ion: 156)
Source Temperature: 260 °C Sample Temperature: 160 °C Reservoir, 75 eV
18.0 1.1 28.0 2.5 37.0 1.1 38.0 1.8 39.0 24.2 44.0 3.5 45.0 4.3 50.0 1.0 52.0 1.2 53.0 1.2 57.0 3.6 58.0 1.5 79.0 1.6 81.0 1.3 82.0 1.6 83.0 11.5 84.0 2.0 111.0 100.0 112.0 7.7 113.0 5.0 156.0 6.8
400 MHz in DMSO-d6
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1H NMR 399.65 MHz C6 H4 O3 S 0.041 g : 0.5 ml DMSO-d6 (2-thienyl)glyoxylic acid 
Assign. Shift(ppm)
A 10. B 8.229 C 8.092 D 7.339
Hz ppm Int.3291.78 8.237 893 3290.71 8.234 954 3286.90 8.225 942 3285.83 8.222 933 3279.27 8.206 34 3236.69 8.099 939 3235.63 8.097 977 3232.88 8.090 1000 3231.81 8.087 936 2937.62 7.351 777 2933.65 7.341 954 2932.74 7.339 963 2928.77 7.329 740
in DMSO-d6
KBr disc
nujol mull
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