4-AMINOPYRAZOLO[3,4-D]PYRIMIDINE(20289-44-5) IR1
Product Name4-AMINOPYRAZOLO[3,4-D]PYRIMIDINE
CAS20289-44-5
Molecular FormulaC5H5N5
Molecular Weight135.13
InChIInChI=1S/C5H5N5/c6-4-3-1-9-10-5(3)8-2-7-4/h1-2,4H,6H2
InChIKey VAOHIJMLMILFFA-UHFFFAOYSA-N
SmilesC1=NC(N)C2=CN=NC2=N1
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![4-AMINOPYRAZOLO[3,4-D]PYRIMIDINE(20289-44-5) IR1](https://www.chemicalbook.com/Spectrum/20289-44-5_MS.gif)
MassMS-NW-7829 4-aminopyrazolo(3,4-d)pyrimidine C5H5N5 (Mass of molecular ion: 135)
Source Temperature: 200 °C Sample Temperature: 190 °C Direct, 75 eV
18.0 1.1 27.0 1.5 28.0 13.0 29.0 4.9 37.0 1.2 38.0 2.9 39.0 2.4 40.0 2.2 42.0 1.4 43.0 6.3 51.0 2.8 52.0 12.4 53.0 8.1 54.0 4.4 64.0 3.9 65.0 2.3 66.0 5.7 67.0 2.7 68.0 1.0 77.0 2.4 78.0 1.3 79.0 2.8 80.0 1.4 107.0 1.8 108.0 27.9 109.0 2.0 119.0 2.7 134.0 5.9 135.0 100.0 136.0 8.1
90 MHz in DMSO-d6
400 MHz in DMSO-d6
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![4-AMINOPYRAZOLO[3,4-D]PYRIMIDINE(20289-44-5) IR1](https://www.chemicalbook.com/Spectrum/20289-44-5_1HNMR.gif)
1H NMR 89.56 MHz C5 H5 N5 0.042 g : 0.5 ml DMSO-d6 4-aminopyrazolo(3,4-d)pyrimidine 
Assign. Shift(ppm)
A 13. B *1 8.193 C *1 8.132 D 7.66
Hz ppm Int.741.60 8.281 23 739.36 8.256 35 733.89 8.195 937 728.42 8.134 1000 686.13 7.662 160
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![4-AMINOPYRAZOLO[3,4-D]PYRIMIDINE(20289-44-5) IR1](https://www.chemicalbook.com/Spectrum/20289-44-5_1HNMR_2.jpg)
1H NMR 399.65 MHz C5 H5 N5 saturated in DMSO-d6 4-aminopyrazolo(3,4-d)pyrimidine Assign. Shift(ppm)
A 13.5 B 8.212 C 8.150 D 7.7
Hz ppm Int.3281.98 8.213 1000 3257.25 8.151 981 3074.45 7.693 53
in DMSO-d6
![4-AMINOPYRAZOLO[3,4-D]PYRIMIDINE(20289-44-5) IR1](https://www.chemicalbook.com/Spectrum/20289-44-5_13CNMR.gif)
KBr disc
![4-AMINOPYRAZOLO[3,4-D]PYRIMIDINE(20289-44-5) IR1](https://www.chemicalbook.com/Spectrum/20289-44-5_IR1_2.jpg)
nujol mull
![4-AMINOPYRAZOLO[3,4-D]PYRIMIDINE(20289-44-5) IR1](https://www.chemicalbook.com/Spectrum/20289-44-5_IR2.gif)
