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<\/a><\/a>\nThis research uncovered a previously unknown polymorph (\u03ba<\/i>-form) of indomethacin, a widely used pain relief and anti-inflammatory drug. The research team also conducted structural analysis and characterization of the newly identified crystal form. Although indomethacin has been the subject of pharmaceutical research for years, the discovery of a new polymorph is an extremely rare event, making this discovery highly significant for both crystallography and pharmaceutical research.<\/p>
\nCrystal polymorphs are different crystal structures formed from the same chemical compound, resulting in variations in properties such as solubility and stability. Differences among polymorphs are an important research theme in pharmaceutical development, as they affect drug quality and manufacturability. The newly discovered polymorph is expected to deepen understanding in future pharmaceutical research.<\/p>
\nStructural analysis in this research project was carried out using the MicroED method with XtaLAB Synergy-ED, a fully integrated electron diffractometer jointly developed by Rigaku and JEOL Ltd. The newly discovered polymorph consisted of extremely small crystals measuring less than one micrometer, making structural analysis difficult using conventional X-ray diffraction methods. By leveraging MicroED technology, the research team successfully determined the crystal structure of the new \u03ba<\/i>-form.<\/p>
\nFurthermore, analysis of molecular arrangements within the crystal revealed intermolecular interactions contributing to the stability of the polymorph. These findings demonstrate the effectiveness of MicroED for discovering previously undetectable polymorphs and highlight its potential to improve pharmaceutical quality and accelerate drug development.<\/p>
\nPaper Title: Discovery of a New Polymorph, \u03ba<\/i>-form of Indomethacin\n \nResearch Partners\n \nJEOL Ltd.\n \nMeiji Pharmaceutical University\n \nAbout the Rigaku Group\n