【Item】:According to JP13,EP5.0

【Characteristics】:A white or pale yellow crystalline powder; odorless.Very soluble in methyl alcohol, glacial acetic acid, slightly soluble in alcohol, water.

【Definition】:Formoterol Fumarate is N-[2-hydroxy-5[(RS)-1-hydroxy-2-[(RS)-2-(4-methoxyphenyl)-1-methylethylamino]ethyl]phenyl]formamide hemifumarate monohydrate. It contain not less than 98.5% of C19H24N2O4.1/2C4H4O4, calculated with reference to the anhydrous substance.