α-Lactose monohydrate, 1 kg
Molar mass (M) 360,32 g/mol
Density (D) 1,525 g/cm³
Melting point (mp) 202 °C
WGK 1
CAS No. 10039-26-6
EG-Nr. 200-559-2
€28.95/Pack Qty.
excl. VAT. | 1 kg per Pack Qty.
Art. No. 8921.1
Product details
α-Lactose monohydrate Ph. Eur., for biochemistry
| Checked according to pharmacopoeia | Ph. Eur. |
- Subtotal: 0.00
| Art. No. | Pack Qty. | Pack. | Price | Quantity | |
|---|---|---|---|---|---|
| 8921.1 | 1 kg | plastic |
€28.95 |
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| 8921.2 | 5 kg | plastic |
€105.25 |
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| 8921.3 | 10 kg | plastic |
€177.40 |
|
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| 8921.5 | 25 kg | plastic |
€385.95 |
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In stock
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No longer available
Delivery date currently unknown
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- Subtotal: 0.00
Downloads / MSDS
General information
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
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
Guarantee analysis
| Appearance | white or almost white, crystalline odourless powder |
| Appearance of solution | complies |
| Identity | complies |
| Acid or alkaline react. substances | complies |
| Specific rotation [α]20D (dry substance) | + 54.4° to + 55.9° |
| Water | 4.5-5.5 % |
| Loss on drying | ≤0.5 % |
| Sulphated ash | ≤0.1 % |
| Heavy metals | ≤0.0005 % |
| Microbiological impurities | complies |
| Absorbance | |
| 400 nm | ≤0.04 |
| 210-220 nm | ≤0.25 |
| 270-300 nm | ≤0.07 |