4-Hydroxybenzoic acid propyl ester, min. 98 %, Ph. Eur., USP, Molar mass (M) 180,21 g/mol, Density (D) 1,287 g/cm³, Flash point (flp) 180 °C, Boiling point (bp) 301 °C, CAS No. [94-13-3], EG-Nr. 202-307-7, Empirical formula C10H12O3