4-hydroxybenzoate ester paraben PMID:25597796 parabens 137.02387 PMID:25192815 PMID:15833376 PMID:25677831 C7H5O3R Oc1ccc(cc1)C(=O)O[*] 0 PMID:25560451 PMID:25588598 Wikipedia:Paraben PMID:25644523 CHEBI:85122 137.11280 chebi_ontology PMID:25463195 A 4-hydroxybenzoate ester in which the esterifying alcohol is an alkanol (in diagram, R = alkyl). Commonly used as preservatives in cosmetic and pharmaceutical products.