o-Cresolphthaleine indicator solution, 0.1 % in ethanol, denatured, Molar mass (M) 346,39 g/mol, Density (D) 0,88 g/cm³, Flash point (flp) 13 °C, Boiling point (bp) 78 °C, UN-Nr. 1170, Empirical formula C22H18O4