title: Effect of maleic acid on the ultraviolet absorption of some antihistamine maleate salts.
mesh_terms: D000042:Absorption; D000468:Alkalies; D006634:Histamine H1 Antagonists / Q000032:analysis* / Q000592:standards; D008298:Maleates; D012997:Solvents; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000468:Alkalies; D006634:Histamine H1 Antagonists; D008298:Maleates; D012997:Solvents