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One mL contains 5 mcg of procaterol hydrochloride.
pH: 3.5 to 4.5.
Chemical name: 8-hydroxy-5-{(1RS,2SR)-1-hyrdoxy-2-[(1-methylethyl)amino]butyl}-quinolin-2-(1H)-one monohydrochloride hemihydrate.
Molecular formula: C16H22N2O3·HCl·½H2O.
Molecular weight: 335.83.
Procaterol hydrochloride occurs as white to pale white yellowish white crystals or crystalline powder. It is soluble in water, formic acid and methanol, slightly soluble in ethanol (95) and practically insoluble in diethyl ether. The pH of its aqueous solution (1 → 100) is 4.0-5.0. Its aqueous solution (1 → 20) shows no optical rotation. It gradually changes in color when exposed to light.
Melting point: Approx. 195°C (decomposition).
Excipients/Inactive Ingredients: Ethyl Paraben (Ethyl parahydroxybenzoate), butyl paraben (butyl parahydroxybenzoate), sodium benzoate, orange essence, sucrose, Alcohol (ethyl alcohol), anhydrous citric acid, sodium citrate, and purified water.
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