D-fructose 
 CAS No. :53188 -23-1 
 English name: D --- Levulose aka: fructose, D-levulose, D-(-) - fructose, D-Aladdin and cyclohexanone sugar, fruit sugar (from beet or cane sugar daisy after the separation by acid hydrolysis have a ketone sugar). Appearance: white to light yellow crystalline powder. 
 Product content and indicators: 99%, the density 1.6g/cm3. Melting point 103 ~ 105 ℃ (decomposition) insoluble: soluble in water, hot acetone, soluble in pyridine, ethylamine and methylamine, slightly soluble in cold acetone. Uses: used as a food sweetener