英文别名Phenylephrine Impurity 13; Phenylephrine Impurity 21; Phenylephrine Related Compound; Phenylephrine Related Compound (3-Hydroxy-4-[[(2R)-2-hydroxy-2-(3-hydroxyphenyl)ethyl]methylamino]-4-oxo-butanoic Acid); Butanoic acid, 3-hydroxy-4-[[(2R)-2-hydroxy-2-(3-hydroxyphenyl)ethyl]methylamino]-4-oxo-