D-(+)-FUCOSE CAS:3615-37-0 98% Keʻokeʻo i ka pauda Crystalline Keʻokeʻo
| Helu Helu | XD90009 |
| inoa mea kūʻai | D-(+)-FUCOSE |
| CAS | 3615-37-0 |
| ʻĀpana Molekala | C6H12O5 |
| Kaumaha Molecular | 164.16 |
| Nā kikoʻī mālama | 2 a 8 °C |
| Kānāwai Kūʻai Kūlike | 29400000 |
Huahana Huahana
| Ke Kino Kino | Keʻokeʻo a keʻokeʻo keʻokeʻo crystalline pauda |
| Maʻemaʻe (HPLC) | min 98% |
| ʻIkepili | 1H NMR ma D2O: Kūlike me ka hoʻolālā |
| Ka Mahana Waihona | +20 ° C |
| Kaumaha Molecular | 164.16 |
| Ka hikiwawe | 5% wai hoʻonā wai: ʻAkaka, kala ʻole a hiki i ka melemele ʻeleʻele loa |
| ʻO ka hoʻololi ʻana i ka optical kikoʻī | a 20 (c=2, HO, 24h): +74 a i +78° |
| Waiwai (KF) | 0.5% kiʻekiʻe |
Noi o D-(+)-FUCOSE
ʻO ka hapa nui o ka fucose i loko o ke ʻano he L-fucose, a ʻo D-fucose i ka hoʻonohonoho D he koʻa laʻa wale nō a loaʻa i loko o kekahi mau glycosides.
D-Fucose D-Fucose >98%.He ʻano kōpaʻa kalapona ʻeono, hiki ke manaʻo ʻia he methyl pentose.Loaʻa ka L-fucose i loko o ka limu a me nā ʻōpala i ka nui, a loaʻa pū kekahi i nā polysaccharides o kekahi mau huakini.
Ma ke ʻano he ʻāpana o nā kaulahao kō i loko o nā glycoproteins, ʻike nui ʻia ka fucose ma ka membrane plasma o nā ʻāpana cell like ʻole.He hoʻokahi pūʻulu hydroxyl ʻo Fucose ma ke ono o ke kalapona ʻātoma ma mua o nā kōpaʻa kalapona ʻeono maʻamau, no laila ʻoi aku ka liʻiliʻi o ka fucose i ka hydrophilic a ʻoi aku ka hydrophobic ma mua o nā monosaccharides ʻē aʻe.ʻO ka fucose i loko o kekahi mau pūʻulu koko he hōʻailona ia o kekahi pūʻulu koko.
ʻO Glycans (N-linked glycans) aia ma ka ʻili o ka mammalian, nā mea kanu a me nā inike.Hiki i nā monomers fucose ke polymerize e hana i fucoidan.ʻO L-fucose wale nō ke ʻano honua i ke ʻano, a ʻo D-fucose kahi analogue synthetic o ka galactose.
ʻElua mau hiʻohiʻona e hoʻokaʻawale i ka fucose mai nā kōpaʻa kalapona ʻeono ʻē aʻe i loaʻa i nā mammals, ʻo ia ka nele o kahi pūʻulu hydroxyl ma ke kalapona ʻeono a me kāna hoʻonohonoho L.
He ʻano kōpaʻa kalapona ʻeono.A hiki ke ʻike ʻia he methyl pentose.ʻO ka hapa nui o ka fucose e noho nei ma ke ʻano he L-fucose, a ʻo ka fucose me ka hoʻonohonoho D he koʻikoʻi kakaikahi wale nō a loaʻa i loko o kekahi mau glycosides.Loaʻa ka L-fucose i ka nui o ka limu a me ka ʻāʻī, a loaʻa pū kekahi i loko o nā polysaccharides o kekahi mau huakini.Ma ke ʻano he ʻāpana o nā kaulahao kō i loko o nā glycoproteins, ʻike nui ʻia ka fucose ma ka membrane plasma o nā ʻāpana cell like ʻole.He hoʻokahi pūʻulu hydroxyl ʻo Fucose ma ke ono o ke kalapona ʻātoma ma mua o nā kōpaʻa kalapona ʻeono maʻamau, no laila ʻoi aku ka liʻiliʻi o ka fucose i ka hydrophilic a ʻoi aku ka hydrophobic ma mua o nā monosaccharides ʻē aʻe.ʻO ka fucose i loko o kekahi mau pūʻulu koko he hōʻailona ia o kekahi pūʻulu koko.ʻO ka mea maʻamau, lawe ʻia ka fucose mai ka limu, mālama mua ʻia me ka waikawa, neutralized, a laila hoʻoheheʻe ʻia i ke ʻano o ka phenylhydrazone, a wehe ʻia ka phenylhydrazine e loaʻa nā kristal α-L-fucose.
