The invention provides crystalline salt forms of 4-{2-ethoxy-4-ethyl-5-[((S)-2-mercapto-4-methylpentanoylamino)methyl]-imidazol-1-ylmethyl}-3-fluorobiphenyl-2-carboxylic acid. This invention also provides pharmaceutical compositions comprising the crystalline compounds, processes and intermediates for preparing the crystalline compounds, and methods of using the crystalline compounds to treat diseases such as hypertension.本發明提供4-{2-乙氧基-4-乙基-5-[((S)-2-巰基-4-甲基戊醯胺基)甲基]-咪唑-1-基甲基}-3-氟聯苯-2-羧酸之結晶鹽型。本發明亦提供包含該等結晶化合物之醫藥組合物、製備該等結晶化合物之方法及中間體、及使用該等結晶化合物以治療疾病(如高血壓)之方法。(無元件符號說明)