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Galactose (/ ɡ ə ˈ l æ k t oʊ s /, galacto-+ -ose, "milk sugar"), sometimes abbreviated Gal, is a monosaccharide sugar that is about as sweet as glucose, and about 65% as sweet as sucrose. [2] It is an aldohexose and a C-4 epimer of glucose. [3] A galactose molecule linked with a glucose molecule forms a lactose molecule.
Download QR code; Print/export ... Chemical formula. C 6 H 12 O 6 Molar mass: 180.16 g/mol ... Talose is a C-2 epimer of galactose and a C-4 epimer of mannose.
Galactogen is a polymer of galactose with species-specific structural variations. In this polysaccharide, the D-galactose are predominantly β (1→3) and β (1→6) linked; however some species also have β (1→2) and β (1→4). [3]
Download QR code; In other projects ... Diagram showing the enzymatic hydrolysis of lactose to D-galactose and D ... The chemistry symbols of this structural formula ...
Skeletal structural formula of Vitamin B 12. Many organic molecules are too complicated to be specified by a molecular formula . The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected to one another. [ 1 ]
Chemical structure of stachyose. A tetrasaccharide is a carbohydrate which gives upon hydrolysis four molecules of the same or different monosaccharides. For example, stachyose upon hydrolysis gives one molecule each of glucose and fructose and two molecules of galactose. The general formula of a tetrasaccharide is typically C 24 H 42 O 21.
A segment of galactomannan showing mannose backbone (below) with a branching galactose unit (top) Galactomannans are polysaccharides consisting of a mannose backbone with galactose side groups, more specifically, a (1-4)-linked beta-D-mannopyranose backbone with branchpoints from their 6-positions linked to alpha-D-galactose, (i.e. 1-6-linked alpha-D-galactopyranose).
d-Galacturonic acid is a sugar acid, an oxidized form of d-galactose. It is the main component of pectin , in which it exists as the polymer polygalacturonic acid . [ 1 ] In its open form, it has an aldehyde group at C1 and a carboxylic acid group at C6.