Chinese alias: D-(+)-glucopyranose; D-(+)-galactose; D-galactose
A monosaccharide combined with glucose to form lactose. White crystals. When crystallized from an aqueous solution, it contains one molecule of crystal water. Melting_point118-120°C. It becomes anhydrous when crystallized from ethanol solution. Melting_point165-168°C. Soluble in water and ethanol. Slightly soluble in glycerol. There is dextrorotation.
The Main Purpose: It is used in organic synthesis and in medicine to determine liver function.