The molecule is a benzoate ester that is ethyl 4-hydroxybenzoate in which the phenolic hydrogen has been replaced by a sulfo group. It is an aryl sulfate, a benzoate ester and an ethyl ester. It derives from a 4-hydroxybenzoic acid. It is a conjugate acid of an ethyl 4-hydroxybenzoate sulfate(1-).
ethyl 4-sulfooxybenzoate