6-O-ALPHA-D-GALACTOPYRANOSYL-D-GLUCOSE MONOHYDRATE Chemical Properties

Melting point:

176-181 °C

solubility 

H₂O: 0.1 g/mL, clear, colorless

form 

Crystalline Powder

color 

White

Water Solubility 

Soluble in water

Merck 

14,5820

CAS DataBase Reference

66009-10-7

Safety Information

Safety Statements 

24/25

WGK Germany 

3

F 

3-10

HS Code 

29389090

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS

6-O-ALPHA-D-GALACTOPYRANOSYL-D-GLUCOSE MONOHYDRATE Usage And Synthesis

Chemical Properties

white odorless crystalline powder

Purification Methods

Melibiose crystallises as a hydrate from water or aqueous EtOH. The anomer is obtained by recrystallising 1g from a mixture of 0.35mL of H2O and 0.2mL of EtOH. It crystallises easily with m 179o and mutarotates from [] D 20 +166o to +142.3o (220minutes, c 4, H2O). Crystallisation from MeOH gives the anhydrous form which hydrates to the monohydrate in air. The anomer dihydrate m 85-86o mutarotates from [] D 20 +123.5o to +143.1o (c 4, H2O for anhydrous). [Fletcher & Diehl J Am Chem Soc 74 5774 1952, Beilstein 1 7 III/IV 3075, 17/7 V 206.]

6-O-ALPHA-D-GALACTOPYRANOSYL-D-GLUCOSE MONOHYDRATE(66009-10-7)Related Product Information

• D-(-)-Arabinose
• D-Glucose monohydrate
• MELIBIOSE
• D(+)-Glucose
• 6-O-ALPHA-D-GALACTOPYRANOSYL-D-GLUCOSE MONOHYDRATE