title: [Recognition of cyclic ketales. 4. IR-spectroscopic examination].
mesh_terms: D003500:Cyclization; D004147:Dioxins / Q000032:analysis*; D004149:Dioxoles / Q000032:analysis*; D007259:Infrared Rays; D007536:Isomerism; D008722:Methods; D013053:Spectrophotometry
chemical_list: D004147:Dioxins; D004149:Dioxoles
vernacular_title: Zur Kenntnis cyclischer Ketale. 4. IR-spektroskopische Untersuchungen.