CAS: 22407-20-1

ALLOPURINOL IMPURITY B CRS

Allopurinol impurity B

Compounds containing an unfused pyrazole ring, whether or not hydrogenated, in the structure, nesoi

Impurity Allopurinol EP Impurity B / Allopurinol USP Related Compound B Stability Hygroscopic Applications 3-(Formylamino)-1H-pyrazole-4-carboxamide (Allopurinol EP Impurity B) is an impurity of Allopurinol (A547300) with inhibitory effects on human hypoxanthine phosphoribosyltransferase. References Krenitzky, T.A. et al.: J. Biol. Chem., 244, 1263 (1969);

This product is an organic compound that has a molecular formula of C6H7N3O2. It is a white solid with a melting point of 76.5 °C and an elution time of 7 minutes (range, 1-10 minutes). The detection method is based on the color change from yellow to blue in the presence of dimethylformamide (DMF). This product is used as a solvent for various chemical reactions and can be used in the synthesis of other products. 3-(Formylamino)-1H-pyrazole-4-carboxamide is used in analytical chemistry to determine substances such as pH, ionic strength, and concentration. In addition, this product can be used to quantify substances such as drugs or pharmaceuticals.