Aluminium ammonium sulphate dodecahydrat, min. 98 %, p.a., ACS, Molar mass (M) 453,33 g/mol, Density (D) 1,65 g/cm³, Boiling point (bp) >280 °C, CAS No. [7784-26-1], EG-Nr. 232-055-3, Empirical formula NH4Al(SO4) · 12 H2O