SEARCH Articles Figures Tables 3-Hydroxybenzoate 4-Hydroxybenzoic acid propyl ester Hydroxybenzoates N-Propyl 4-hydroxybenzoate N-Propyl p-hydroxybenzoate P-Hydroxybenzoic acid propyl ester Potassium propyl hydroxybenzoate Preservatives Propyl 4-hydroxybenzoate Propyl 4-hydroxybenzoate potassium salt Propyl 4-hydroxybenzoate sodium salt Propyl 4-hydroxybenzoate, 4-hydroxybenzoic acid Propyl ester of 4-hydroxybenzoic acid Propyl hydroxybenzoate soluble Propyl p-Hydroxybenzoate Sodium propyl hydroxybenzoate