β-D-Galp-(1->3)-β-D-Galp-(1->4)-D-Xylp | 15178-85-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: β-D-Galp-(1->3)-β-D-Galp-(1->4)-D-Xylp
• 英文别名: D-Galp-(1->3)-D-Galp-(1->4)-L-Arap
• CAS: 15178-85-5；32435-43-1
• 化学式: C₁₇H₃₀O₁₅
• 分子量: 474.416
• InChiKey: GWSLPGNXAMOHHW-LTTGGQSASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -6.93
• 重原子数：
  32.0
• 可旋转键数：
  6.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  248.45
• 氢给体数：
  10.0
• 氢受体数：
  15.0

反应信息

• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 硫酸 作用下， 反应 2.0h， 以7.2 mg的产率得到β-D-Galp-(1->3)-β-D-Galp-(1->4)-D-Xylp
  参考文献：
  名称：

  Structural studies of a polysaccharide isolated from the green seaweed Chaetomorpha anteninna

  摘要：

  Extraction of the green seaweed Chaetomorpha anteninna with water, followed by fractionation using the copper complex, gave a sulphated heteropolysaccharide, [alpha]D27 +84 degrees, that contained arabinose (57.7%), galactose (38.5%), rhamnose (3.8%), and sulphate (11.9%). Application of methylation analysis, periodate oxidation, and partial acid hydrolysis indicated a branched structure with 4-linked arabinose, 4- and 3-linked galactose, and 4-linked rhamnose residues. Both the arabinose and galactose residues carried branches. Desulphation and analysis of the polymeric product showed that sulphate groups were located at C-2 of some of the interior arabinose residues, C-4 of some of the non-reducing-end arabisoyl groups, and C-3 of the non-reducing-end galactosyl groups.

  DOI：

  10.1016/0008-6215(91)84126-y