Esculin Sesquihydrate, min. 97,5 %, DAB, for biochemistry, Molar mass (M) 367,31 g/mol, Density (D) 1,52 g/cm³, CAS No. [66778-17-4], EG-Nr. 208-517-5, Empirical formula C15H16O9 · 1,5 H2O