Problem: Phenylephrine, an organic substance with molecular formula C9H13NO2, is used as a nasal decongenstant in over-the-counter medications. The molecular structure of phenylephrine is shown below using the usual shortcut organic nomenclature.One of the active ingredients in Alka-Seltzer PLUS cold medication is "phenylephrine hydrochloride." How does this ingredient differ from the structure shown below?

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Phenylephrine, an organic substance with molecular formula C9H13NO2, is used as a nasal decongenstant in over-the-counter medications. The molecular structure of phenylephrine is shown below using the usual shortcut organic nomenclature.
The structure of phenylephrine is a benzene ring attached to an OH group and a carbon chain with OH and NHCH3 groups.

One of the active ingredients in Alka-Seltzer PLUS cold medication is "phenylephrine hydrochloride." How does this ingredient differ from the structure shown below?

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