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MassMS-IW-0019 (3-aminopropyl)phosphonic acid C3H10NO3P (Mass of molecular ion: 139)
Source Temperature: 190 °C Sample Temperature: 190 °C Direct, 75 eV
15.0 1.1 17.0 7.4 18.0 38.0 26.0 2.7 27.0 6.2 28.0 27.2 29.0 21.6 30.0 21.0 31.0 1.1 39.0 4.4 40.0 1.0 41.0 7.0 42.0 2.3 43.0 1.1 44.0 2.3 46.0 15.0 47.0 11.8 48.0 2.1 49.0 1.2 52.0 1.0 54.0 5.4 55.0 2.3 56.0 26.1 57.0 35.5 58.0 1.4 59.0 1.3 64.0 1.7 65.0 83.8 66.0 3.9 74.0 1.0 75.0 3.9 76.0 1.3 80.0 1.9 82.0 1.4 92.0 2.3 93.0 100.0 94.0 5.3 102.0 2.8 104.0 1.5 120.0 50.4 121.0 35.0 122.0 6.4
400 MHz in D2O
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1H NMR 399.65 MHz C3 H10 N O3 P 0.040 g : 0.5 ml D2O (3-aminopropyl)phosphonic acid 
Assign. Shift(ppm)
A 3.074 B 1.900 C 1.665 SOLVENT PEAK REMOVED
Hz ppm Int.1236.21 3.094 674 1228.76 3.075 1000 1221.31 3.056 695 781.62 1.956 74 773.93 1.937 196 765.99 1.917 318 763.06 1.910 308 758.18 1.898 320 755.37 1.891 326 751.22 1.880 217 747.19 1.870 216 739.14 1.850 95 682.25 1.708 338 673.46 1.686 335 664.67 1.664 410 656.01 1.642 331 648.44 1.623 243
in D2O
KBr disc
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