A new crystal form of minodronic acid

摘要

The present invention relates to two stable crystalline forms of (1-hydroxy-2-imidazo [1,2-a] pyridin-3-yl-1-phosphonoethyl) phosphonic acid, referred to as crystalline form X and crystalline form Y, and Provided are methods for the preparation of these crystalline forms, wherein each crystalline polymorph can be obtained individually as a single crystalline form.