α-Lactose monohydrate, 1 kg
Molar mass (M) 360,32 g/mol
Density (D) 1,525 g/cm³
Melting point (mp) 202 °C
CAS No. 10039-26-6
excl. VAT. | 1 kg per Pack Qty.
Art. No. 8921.1
α-Lactose monohydrate Ph. Eur., for biochemistry
|Checked according to pharmacopoeia||Ph. Eur.|
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Downloads / MSDS
Carbohydrates or Saccharides make up 50 % of the dry biomass of the earth and are therefore the most frequent class of biomolecules. Besides at least two hydroxy groups, they also have an aldehyde or a ketone group and can be subdivided according to the number of monomeric components in mono-, di-, oligo and polysaccharides.
Whereas mono-, di- and oligosaccharides are soluble in water, taste sweet and are therefore called as sugar, polysaccharides are hardly, or not at all, soluble in water and have a neutral taste.
Carbohydrates, together with fats and proteins make up a large percentage of nutrition. In addition to their central role as an energy source, they are also an important structural component especially in plants (e.g. Cellulose). Ribose, a monosaccaride with five carbons (C5H10O5) is an essential element of coenzymes (such as ATP, FAD and NAD) and a structural component of RNA. Desoxyribose (a ribose derivative) is a structural component of DNA.
Disaccharides consist of two monosaccharide units. These are interlinked covalently via a glycocide bond. The most familiar representatives are saccharose, lactose and maltose.
Certificates of Analysis
|Appearance||white or almost white, crystalline odourless powder|
|Appearance of solution||complies|
|Acid or alkaline react. substances||complies|
|Specific rotation [α]20D (dry substance)||+ 54.4° to + 55.9°|
|Loss on drying||≤0.5 %|
|Sulphated ash||≤0.1 %|
|Heavy metals||≤0.0005 %|