English name: halofuginone; 4(3h)-quinazolinone, 7-bromo-6-chloro-3-[3-[(2r, 3s)-3-hydroxy-2-piperidinyl]-2-oxopropyl]-, rel- Cas registry number: 55837-20-2 Molecular formula: c16 h17 br cl n3 o3 Molecular weight: 414.68 Purity: hplc more than or equal to 98% Appearance: white or light gray crystal powder(room temperature) Melting point (experimental)value: 192-195 degrees centigrade Boiling point (predicted)value: 595.8 more or less 60.0 °c | condition: press: 760 torr Density (predicted)value: 1.73 more or less 0.1 g/cm3 | condition: temp: 20 degrees centigrade press: 760 torr Pka (predicted)value: 14.61 more or less 0.40 | condition: most acidic temp: 25 degrees centigrade Storage: 2-8 degrees centigrade, keep container tightly in a dry place, out of light.