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331449

Sigma-Aldrich

3-Amino-5-hydroxypyrazole

98%

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About This Item

Fórmula empírica (notación de Hill):
C3H5N3O
Número de CAS:
6126-22-3
Peso molecular:
99.09
EC Number:
228-095-6
MDL number:
MFCD00022384
UNSPSC Code:
12352100
PubChem Substance ID:
24859961
NACRES:
NA.22

Quality Level

100

assay

98%

mp

214 °C (dec.) (lit.)

SMILES string

Nc1cc(O)[nH]n1

InChI

1S/C3H5N3O/c4-2-1-3(7)6-5-2/h1H,(H4,4,5,6,7)

InChI key

QZBGOTVBHYKUDS-UHFFFAOYSA-N

Categorías relacionadas

General description

Molecular and vibrational structure of 3-amino-5-hydroxypyrazole was investigated by density functional method.

Application

3-Amino-5-hydroxypyrazole was used in the synthesis of 2,6-difluoro-N-(3-methoxy-1H-pyrazolo[3,4-b]pyridine-5-yl)-3-(propylsulfonamidio)benzamide and heteroaromatic 3-hydroxy-5,6-diphenylpyrazolo[3,4-b]pyridines.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Zun-Ting Zhang et al.
Journal of combinatorial chemistry, 12(4), 600-603 (2010-06-08)
A new concise, facile, and efficient method for the synthesis of 3-hydroxy-5,6-diphenylpyrazolo[3,4-b]pyridine derivatives has been described. The cyclocondensation of isoflavones with 3-amino-5-hydroxypyrazole in the presence of sodium methoxide gave fused heteroaromatic 3-hydroxy-5,6-diphenylpyrazolo[3,4-b]pyridines in moderate to good yields.
J Swaminathan et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 71(5), 1776-1782 (2008-09-02)
In this work, we report a combined experimental and theoretical study on molecular and vibrational structure of 3-amino-5-hydroxypyrazole (3A5HP). The Fourier transform infrared and Fourier transform Raman spectra of 3A5HP were recorded in the solid phase. The molecular geometry and
Min Wang et al.
Bioorganic & medicinal chemistry letters, 23(4), 1017-1021 (2013-01-09)
The authentic standard 2,6-difluoro-N-(3-methoxy-1H-pyrazolo[3,4-b]pyridine-5-yl)-3-(propylsulfonamidio)benzamide was synthesized from 2,6-difluorobenzoic acid and 3-amino-5-hydroxypyrazole in 9 steps with 1% overall chemical yield. Direct desmethylation of the reference standard with TMSCl/NaI gave the precursor 2,6-difluoro-N-(3-hydroxy-1H-pyrazolo[3,4-b]pyridine-5-yl)-3-(propylsulfonamidio)benzamide for radiolabeling in 70% yield. The target tracer 2,6-difluoro-N-(3-[(11)C]methoxy-1H-pyrazolo[3,4-b]pyridine-5-yl)-3-(propylsulfonamidio)benzamide

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