title: [The polymorphism of 7-(beta-hydroxypropyl)- and 7-(beta, gamma-dihydroxypropyl) theophylline].
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003460:Crystallization; D007536:Isomerism; D013806:Theophylline / Q000031:analogs & derivatives*
chemical_list: D013806:Theophylline
vernacular_title: Uber das Polymorphie-Verhalten von 7-(beta-Hydroxypropyl)-und 7-(beta, gamma-Dihydroxypropyl)-theophyllin