title: [Spiro compounds of dihydropyridazine].
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D011724:Pyridazines / Q000138:chemical synthesis*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013141:Spiro Compounds / Q000138:chemical synthesis*; D013455:Sulfur
chemical_list: D011724:Pyridazines; D013141:Spiro Compounds; D013455:Sulfur
vernacular_title: Uber Spiroverbindungen des Dihydropyridazins