3-(ForMylaMino)-1H-pyrazole-4-carboxaMide;5-(forMylaMino)-1H-pyrazole-4-carboxaMide;Allopurinol Related CoMpound B;Allopurinol EP Impurity B（Allopurinol USP Related Compound B）;Allopurinol EP Impurity B or Allopurinol USP Related Compound B;Allopurinol EP Imp B;3-(Formylamino)-1H-pyrazole-4-carboxamide 5-(Formylamino)-1H-pyrazole-4-carboxamide;Allopurinol EP Impurity B (USP RC B)
5-(forMylaMino)-1H-pyrazole-4-carboxaMide Chemical Properties
Melting point
>200oC (dec.)
Boiling point
601.5±40.0 °C(Predicted)
density
1.597±0.06 g/cm3(Predicted)
storage temp.
Hygroscopic, -20°C Freezer, Under inert atmosphere
solubility
DMSO (Slightly), Methanol (Slightly)
pka
10.46±0.50(Predicted)
form
neat
color
White to Off-White
Stability:
Hygroscopic
Safety Information
WGK Germany
3
HS Code
2933199050
MSDS Information
5-(forMylaMino)-1H-pyrazole-4-carboxaMide Usage And Synthesis
Uses
3-(Formylamino)-1H-pyrazole-4-carboxamide (Allopurinol EP Impurity B) is an impurity of Allopurinol (A547300) with inhibitory effects on human hypoxanthine phosphoribosyltransferase.
5-(forMylaMino)-1H-pyrazole-4-carboxaMide Preparation Products And Raw materials
