Crystal forms of atorvastatin
An SG et al. - The objective of this work was to investigate the existence of new polymorphs and pseudopolymorphs of atorvastatin and the transformation of crystal forms. Three crystal forms of atorvastatin have been isolated by recrystallization and characterized by powder X-ray diffractometry, differential scanning calorimetry, and thermogravimetric analysis. The PXRD and DSC patterns of the three crystal forms were different respectively and it was confirmed that Form 3 is a new crystal form. [more...]
|
|
|
