title: Xanthone-2-carboxylic acids, a new series of antiallergic substances.
mesh_terms: D000818:Animals; D000937:Antigen-Antibody Reactions; D001249:Asthma / Q000188:drug therapy; D002264:Carboxylic Acids / Q000138:chemical synthesis / Q000627:therapeutic use; D006967:Hypersensitivity / Q000188:drug therapy*; D010323:Passive Cutaneous Anaphylaxis; D051381:Rats; D013329:Structure-Activity Relationship; D014966:Xanthenes / Q000138:chemical synthesis* / Q000627:therapeutic use
chemical_list: D002264:Carboxylic Acids; D014966:Xanthenes