D-mannosio CAS 3458-28-4

Product name: D-Mannose Molecular Formula: C6H12O6 Molecular Weight: 180.156 CAS No.: 3458-28-4 Description D-Mannose is divided into two types, α-form and β-form. The α-form is a crystal of a methyl group having a melting point of 133 ° C; a β-form of an ethyl group having a melting point of 132 ° C (decomposition point). It is sweet and slightly bitter aftertaste. It is soluble in water (250%), insoluble in ethanol (0.4%), insoluble in ether. Application There are two types of D-Mannose: α-type and β-type. The α-type is a methyl crystal with a melting point of 133°C; the β-type is an ethyl crystal with a melting point of 132°C (decomposition point). D-Mannose is sweet and has a slightly bitter aftertaste. It is easily soluble in water (250%), hardly soluble in ethanol (0.4%), and insoluble in ether. In plants, it mainly exists in polysaccharides such as mannan in the form of condensates. The free form is present in the exudate of the coconut husk and Fraxinusornus (Fraxinusornus), in addition to trace amounts of citrus peel, germinated seeds and molasses. Specification Appearance White crystal or crystalline powder Assay ≥99.0% Clarity & Colour Clear colorless Melting point 126℃～134℃ Specific Optical Rotation +14° ~ +15° Loss on Drying ≤0.5% Heavy Metals ≤10ppm Bacteria amount ≤1000cfu/g Yeasts and molds ≤200cfu/g Salmonella Negative StaphylococcusAureus Negative Escherichia coli Negative Packing 25kg/ drum or as customer’s requirements. Storage Store in cool and dry place. Minimum Order 100kgs

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