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A common, white, crystalline monosaccharide that occurs in milk sugar (lactose) and in certain pectins, gums, and mucilages.

Synonyms and Related Terms

cerebrose; brain sugar; d-galactose; d-galactopyranose

Chemical structure


Other Properties

Soluble in hot water and ethanol.

Composition C6H12O6
CAS 59-23-4
Melting Point 165-168
Molecular Weight mol. wt. = 180.16

Hazards and Safety

Mallinckrodt Baker: MSDS

Sources Checked for Data in Record

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998