Overview
D-Mannosamine is an amino sugar derived from D-mannose through the substitution of a hydroxyl group with an amino group at the C-2 position. It is a key intermediate in the biosynthesis of sialic acids and N-linked glycoproteins, making it biologically significant. Primarily produced through chemical synthesis or enzymatic methods, it serves as a building block for more complex carbohydrates. Its chiral nature and specific configuration make it valuable for studying carbohydrate-protein interactions and metabolic pathways.
Physical and Chemical Properties
As a white crystalline powder, D-Mannosamine exhibits moderate solubility in water due to its polar functional groups. Its melting point with decomposition reflects typical sugar-like thermal instability under high temperatures. The compound's chiral center at C-2 influences its optical activity, with a specific rotation typically around +14° (c=1 in water). Its stability in aqueous solutions depends on pH, with optimal stability near neutral conditions. Under acidic or basic conditions, it may undergo degradation or epimerization.
Main Applications
In biochemical research, D-Mannosamine is used to study glycosylation processes and inhibit N-linked glycosylation when administered to cells. It's particularly valuable for investigating sialic acid biosynthesis and metabolic disorders. Pharmaceutical applications include its use as an intermediate in antiviral drug development, especially for influenza treatments targeting viral neuraminidase. Some nutritional supplements incorporate D-Mannosamine derivatives for potential joint health benefits, though clinical evidence remains limited.
Safety and Storage
While not classified as highly hazardous, D-Mannosamine requires standard laboratory precautions including gloves and eye protection. Inhalation of powder should be avoided, and work should be conducted in well-ventilated areas. For long-term storage, the compound should be kept in airtight containers with desiccant packs to prevent moisture absorption. Refrigeration at 2-8°C is recommended for extended stability, though the material should be allowed to reach room temperature before opening to prevent condensation.
B2B Procurement Guide
When sourcing D-Mannosamine, purity specifications should be clearly defined, typically ≥98% by HPLC. Chiral purity is particularly important for research applications, with ≥99% enantiomeric excess often required. Suppliers should provide comprehensive analytical data including NMR and mass spectra for verification. Lead times for custom quantities can vary from 2-6 weeks depending on supplier inventory. For large-scale pharmaceutical use, regulatory documentation including DMFs may be required.
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