trans-Aconitic acid, min. 98,0 %, Molar mass (M) 174,11 g/mol, Density (D) 0,56 g/cm³, Boiling point (bp) 542,6 °C, Storage temp. +4 °C, CAS No. [4023-65-8], EG-Nr. 223-688-6, Empirical formula C6H6O6