3-Hydroxy-1,2,3-benzotriazin-4(3H)-one
Product Name 3-Hydroxy-1,2,3-benzotriazin-4(3H)-one
CAS28230-32-2
MFC7H5N3O2
MW163.13
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MassMS-IW-1772 3-hydroxy-1,2,3-benzotriazin-4(3H)-one C7H5N3O2 (Mass of molecular ion: 163)
Source Temperature: 140 °C Sample Temperature: 120 °C Direct, 75 eV
26.0 1.1 27.0 1.6 28.0 4.1 30.0 2.3 37.0 8.1 38.0 11.8 39.0 20.1 40.0 2.3 41.0 2.7 44.0 1.8 45.0 3.0 49.0 3.3 50.0 32.5 51.0 20.8 52.0 59.9 53.0 9.5 55.0 1.2 61.0 3.6 62.0 7.9 63.0 40.9 64.0 43.0 65.0 9.2 66.0 4.2 73.0 2.5 74.0 10.6 75.0 9.1 76.0 35.8 77.0 24.2 78.0 12.1 79.0 100.0 80.0 7.7 88.0 1.6 89.0 6.1 90.0 60.2 91.0 12.4 92.0 6.0 93.0 1.3 104.0 8.1 105.0 9.6 106.0 4.4 117.0 1.4 118.0 6.9 119.0 4.8 120.0 1.1 133.0 4.0 134.0 1.1 135.0 12.1 136.0 1.0 137.0 2.8 147.0 3.5 163.0 51.4 164.0 4.8
400 MHz in DMSO-d6
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1H NMR 399.65 MHz C7 H5 N3 O2 0.031 g : 0.5 ml DMSO-d6 3-hydroxy-1,2,3-benzotriazin-4(3H)-one 
Assign. Shift(ppm)
A 13.0 B 8.296 C 8.228 D 8.103 E 7.946
Hz ppm Int.5188.04 12.982 67 3320.86 8.310 649 3320.22 8.308 689 3319.37 8.306 696 3318.94 8.305 652 3316.16 8.298 58 3312.96 8.290 722 3312.32 8.289 864 3311.46 8.286 833 3310.82 8.285 757 3294.37 8.244 599 3293.73 8.242 723 3293.09 8.240 741 3292.66 8.239 564 3286.03 8.223 854 3285.39 8.221 922 3284.97 8.220 1000 3284.32 8.218 844 3246.72 8.124 579 3245.22 8.121 662 3242.66 8.114 46 3239.45 8.106 856 3237.95 8.102 851 3236.89 8.100 488 3233.47 8.091 50 3231.33 8.086 536 3229.83 8.082 573 3183.47 7.966 640 3182.18 7.963 747 3179.62 7.957 47 3179.19 7.955 50 3176.20 7.948 696 3175.35 7.946 890 3174.28 7.943 715 3171.29 7.936 51 3168.29 7.928 474 3167.01 7.925 549
in DMSO-d6
KBr disc
nujol mull
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