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3458-28-4,D-Mannose,D-甘露糖, cas:3458-28-4 C6H12O6 / 180.16 MFCD00064122D-Mannose CAS No: 3458-28-4 Synonyms: D-Mannopyranose MDL No: MFCD00064122 Chemical Formula: C6H12O6 Molecular Weight: 180.16 Product Structure COA: Product name: D-Mannose CAS: 3458-28-4 M.F.: C6H12O6 M.W.: 180.16 Batch No: 20130202 Quantity:12.5kg Items Standards Results Appearance white crystals or powder Positive Solubility Easily soluble in water, insoluble in ether Complies Appearance of solution Dissolve0.5 gin 10 ml of water, and the solution should be clear Complies Identification IR and TLC Complies MS and NMR Should Comply Complies Specific rotation (C =10 inH2O) +14° ~  +15° +14.3° Melting point 125 °C ~ 130 °C 128°C ~ 130°C Loss on Drying Max.0.5% 0.05% Heavy metal Max. 10ppm Complies Residue on ignition Max. 0.1% 0.05% Any impurity Max. 0.5% Complies Assay by HPLC Min. 99% 99.4% Total Plate Count ≤1000cfu/g Complies Yeast, Mold & Fungi ≤200cfu/g Complies Salmonella Negative Complies E. Coli Negative Complies Staphylococcus Negative Complies     Obt. from the hydrolysates of D-mannans of the tagua palm Phytelephas macrocarpa. Mannans are also present in the ubers of Orchidaceae, seed of Phoenix canariensis, and corms of Amorphophallus konjac (devil’s tongue). They are proliferated by some red algae and yeasts. Mannose is a constit. of blood serum globulins, ovomucoid, and tubercle bacilli. Occurs in trace amounts in apples and peaches. Obt. comly. from ivory nut hydrolysis. Inexpensive starting material for chiral synthesis. pKa1 12.08 (258). References: 1. Fleet GWJ, Gough MJ, Shing TKM, Tetrahedron Lett. 1984, 25, 4029