D-galactose is a monosaccharide consisting of six carbons and an aldehyde. It is less sweet than glucose and is a differential isomer of the C-4 position of glucose. D-galactose has a molecular formula of C6H12O6 and a molecular weight of 180.16. It is usually a white crystal or powder. It is the hydrolyzed product of lactose, raffinose, triosaccharide and galactan.

D-galactose is a monosaccharide consisting of six carbons and an aldehyde. It is less sweet than glucose and is a differential isomer of the C-4 position of glucose. D-galactose has a molecular formula of C6H12O6 and a molecular weight of 180.16. It is usually a white crystal or powder. It is the hydrolyzed product of lactose, raffinose, triosaccharide and galactan.

D-galactose can induce and accelerate the aging process, so it is widely used in the establishment of aging models and the study of aging complications drugs. D-galactose can also be used to measure liver function and used as pharmaceutical excipients. At the same time, D-galactose can also be used in the synthesis of D-tagose, D-tagose has the effect of inhibiting hyperglycemia, improving intestinal flora and preventing caries, and can be used as a food additive.

In the field of food, D-tagose, which is synthesized from D-galactose as a precursor, is often used as a food additive because of its effects of inhibiting hyperglycemia, improving intestinal flora and preventing dental caries.

In addition, D- galactose products as biochemical reagents used in scientific research is another main application field. D-galactose can promote aging. The aging model based on D-galactose has the advantages of simplicity, low cost and stable results. Therefore, D-galactose is used as the main biochemical reagent to conduct research on human aging process in universities, scientific research institutes and other institutions.