IUPAC nomenclature N,N-dimethyl-1-phenothiazin-10-ylpropan-2-amine Chemical Structure Physicochemical Properties 1. Chemical formula: C17H20N2S·HCl 2. Molecular Weight: 320.88 g/mol. 3. Solubility: Promethazine HCl is soluble in water and slightly soluble in alcohol. Its solubility in water makes it suitable for oral and intravenous…