L-(-)-Fucose
Molecular Structure:
MDL:
--MFCD00135607
Molecular Formula:
C6H12O5
Molecular Weight:
164.16
Alias:
L(-)岩藻糖,6-脱氧-L-半乳糖
6-Deoxy-L-galactose
L-(-)-Rhodeose
6-Deoxy-beta-galactose
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
L-(-)-Fucose |
99% |
25g |
RMB 8305 |
Consulting service |
L-(-)-Fucose |
99% |
5g |
RMB 1815 |
Consulting service |
L-(-)-Fucose |
99% |
1g |
RMB 506 |
Consulting service |
Character:
熔点:150-153℃
比光旋度:-78°
Quality Standard:
外观Appearance 无色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity ≥99.0% (HPLC)
比旋光度Specific rotation [a]20/D -76°~ -74°(4%; H2O)
重金属Heavy metals (as Pb) ≤0.001 %
水分Water (K.F.) ≤0.5 %
Storage:
密封保存
用途 六碳糖的一种。并可以看做是一种甲基戊糖。自然界存在的岩藻糖绝大多数为L-岩藻糖,D构型的岩藻糖仅作为稀有糖,发现于一些糖甘类化合物中。L-岩藻糖较大量地存在于海藻及树胶中,也发现于某些细菌的多糖中。岩藻糖作为糖蛋白中糖链的组成部分,广泛存在于各类细胞表面的质膜上。岩藻糖比一般六碳糖在第六碳原子上少一个羟基,所以岩藻糖比其他单糖亲水性弱,而疏水性强一些。在某些血型物质分子中的岩藻糖是一定的血型的标记。通常从海藻中提取岩藻糖,先用酸处理,中和后,以苯腙形式析出,除去苯肼,可得α-L-岩藻糖结晶。
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