The invention provides a crystalline 1,2-ethanedisulfonic acid salt of biphenyl-2-ylcarbamic acid 1-[2-(2-chloro-4-{[(R)-2-hydroxy-2-(8-hydroxy-2-oxo-1,2-dihydroquinolin-5-yl)ethylamino]methyl}-5-methoxyphenylcarbamoyl)ethyl]piperidin-4-yl ester or a solvate thereof. This invention also provides pharmaceutical compositions comprising such a salt or prepared using such a salt； processes and intermediates for preparing such a salt； and methods of using such a salt to treat a pulmonary disorder.本發明提供一種聯苯－2－基胺基甲酸1－[2－(2－氯－4－{[(R)－2－羥基－2－(8－羥基－2－氧代－1,2－二氫喹啉－5－基)乙基胺基]甲基}－5－甲氧基苯基胺基甲醯基)乙基]哌啶－4－酯或其溶劑化物之結晶1,2－乙烷二磺酸鹽。本發明亦提供包括該鹽或使用該鹽製備之醫藥組合物；製備該鹽之方法或中間物；及使用該鹽治療肺部疾病之方法。
