86-MM0491.22-0025 - risperidone-trans-n-oxide

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

<p>Applications Risperidone (R525000) impurity.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References El-Sherif, Z., et al.: J. Pharm. Biomed. Anal., 36, 975 (2005), Sattanathan, P., et al.: J. Pharm. Biomed. Anal., 40, 598 (2006),<br></p>

<p>Risperidone N-oxide is a prodrug of risperidone. It is prepared by reacting risperidone with methanol and hydrogen peroxide in the presence of piperidine, followed by purification using preparative high-performance liquid chromatography. Risperidone N-oxide is a crystalline solid with a melting point of about 190 °C. Risperidone N-oxide has been shown to have antiemetic properties, which may be due to its ability to block dopamine receptors in the brain. The drug also shows some antipsychotic activity, and it has a constant therapeutic effect against schizophrenia. The major impurities found in risperidone N-oxide are hydroxylamine and piperidine.</p>