IUPAC nomenclature 2-(diphenylmethoxy)-N,N-dimethylethanamine Chemical Structure Physicochemical Properties 1. Chemical Formula: C17H21NO·HCl 2. Molecular Weight: 291.82 g/mol 3. Solubility: Diphenhydramine HCl is soluble in water, alcohol, and chloroform. Its solubility in water makes it suitable for oral administration in various formulations…