D-(+)-FUCOSE CAS: 3615-37-0 98% Dawb Rau Off-White Crystalline Hmoov
| Catalog Number | XD90009 |
| Khoom npe | D-(+)-FUCOSE |
| CAS | 3615-37-0 |
| Molecular Formula | C6H12O5 |
| Molecular Luj | 164.16 Nws |
| Cov ntaub ntawv khaws cia | 2 txog 8 ° C |
| Harmonized tariff Code | 29 400 000 IB |
Khoom Specification
| Lub cev tshwm sim | Dawb mus rau dawb crystalline hmoov |
| Purity (HPLC) | tsawg kawg 98% |
| Kev txheeb xyuas | 1H NMR hauv D2O: Ua raws li cov qauv |
| Cia Kub | +20 ° C |
| Molecular Luj | 164.16 Nws |
| Solubility | 5% dej tov: ntshiab, tsis muaj xim mus rau daj ntseg heev |
| Kev sib hloov kho qhov muag tshwj xeeb | a 20 (c=2, HO, 24h): +74 to +78° |
| Cov ntsiab lus dej (KF) | max 0.5% |
Kev siv D-(+)-FUCOSE
Feem ntau ntawm fucose nyob rau hauv qhov xwm txheej yog L-fucose, thiab D-fucose nyob rau hauv D configuration tsuas yog ib tug tsis tshua muaj suab thaj thiab pom nyob rau hauv ib co glycosides.
D-Fucose D-Fucose > 98%.Ib hom 6-carbon qab zib, uas tuaj yeem suav tias yog methyl pentose.L-fucose muaj nyob rau hauv seaweed thiab cov pos hniav nyob rau hauv loj, thiab kuj muaj nyob rau hauv cov polysaccharides ntawm ib co kab mob.
Raws li ib feem ntawm cov piam thaj chains hauv glycoproteins, fucose yog dav nyob rau hauv plasma daim nyias nyias ntawm ntau qhov chaw ntawm tes.Fucose muaj ib pab pawg tsawg hydroxyl nyob rau hauv thib rau carbon atom tshaj li 6-carbon suab thaj, yog li fucose tsis tshua muaj hydrophilic thiab ntau hydrophobic dua lwm cov monosaccharides.Fucose nyob rau hauv qee pawg ntshav molecules yog ib qho cim ntawm ib pawg ntshav.
Glycans (N-linked glycans) muaj nyob rau saum npoo ntawm cov tsiaj txhu, cov nroj tsuag thiab kab.Fucose monomers tuaj yeem ua polymerize los ua fucoidan.L-fucose yog tib hom universal nyob rau hauv cov xwm, thiab D-fucose yog ib tug hluavtaws analogue ntawm galactose.
Ob yam ntxwv txawv ntawm fucose los ntawm lwm cov 6-carbon suab thaj tam sim no nyob rau hauv cov tsiaj, uas yog qhov tsis muaj ib pawg hydroxyl ntawm carbon rau thiab nws L configuration.
Ib hom 6-carbon qab zib.Thiab tuaj yeem pom raws li methyl pentose.Feem ntau ntawm fucose uas muaj nyob rau hauv qhov xwm txheej yog L-fucose, thiab fucose nrog D configuration tsuas yog tsis tshua muaj suab thaj thiab pom muaj nyob rau hauv qee cov glycosides.L-fucose muaj ntau nyob rau hauv seaweed thiab pos hniav, thiab tseem muaj nyob rau hauv cov polysaccharides ntawm tej kab mob.Raws li ib feem ntawm cov piam thaj chains hauv glycoproteins, fucose yog dav nyob rau hauv plasma daim nyias nyias ntawm ntau qhov chaw ntawm tes.Fucose muaj ib pab pawg tsawg hydroxyl nyob rau hauv thib rau carbon atom tshaj li 6-carbon suab thaj, yog li fucose tsis tshua muaj hydrophilic thiab ntau hydrophobic dua lwm cov monosaccharides.Fucose nyob rau hauv qee pawg ntshav molecules yog ib qho cim ntawm ib pawg ntshav.Feem ntau, fucose yog muab rho tawm los ntawm seaweed, thawj zaug kho nrog acid, neutralized, thiab ces precipitated nyob rau hauv daim ntawv ntawm phenylhydrazone, thiab phenylhydrazine raug tshem tawm kom tau α-L-fucose muaju.
