Scopolamine butylbromide Chemical Properties Melting point 142-1440C alpha D20 -20.8° (c = 3 in water) storage temp. -20°C Freezer, Under Inert Atmosphere solubility H2O: 50 mg/mL form powder color white optical activity [α]25/D 20.8°, c = 3 in H2O(lit.)