D-半乳糖 CAS:59-23-4
基本信息
CAS号：59-23-4
分子式：C6H12O6
分子量：180.16
纯度：98.0%以上
MDL号： MFCD00151230
Beilstein号： 1724619
EC号： 200-416-4
重金属：≤0.001%
英文名字：D-Galactose CAS:59-23-4
Essential information
CAS: 59-23-4
Molecular formula: C6H12O6
Molecular weight: 180.16
Purity: more than 98%
MDL: MFCD00151230
Beilstein: 1724619
EC: 200-416-4
Character description
White crystal or crystalline powder, without special odor, soluble in water and pyridine, water solubility: 680 g/L (25 C); slightly soluble in glycerol and alcohol. Galactose is a monosaccharide composed of six carbon and one aldehyde, which is classified as aldose and hexose. D- galactose and L- galactose exist naturally. The general structure of D- galactose as part of lactose found in milk, lactose in milk by the human body is decomposed into glucose and galactose was absorbed by.
Physical parameters
Melting point: 165-168 degrees centigrade
Optical rotation: +78.5 -81.0 degrees
Quality standard
Content: 98%
Dry weight loss: less than 0.5%
Residue: less than 0.5%
Chloride: less than 0.003%
Sulfate: less than 0.005%
Heavy metal: less than 0.001%
D-半乳糖 CAS:59-23-4 是琼脂、植物树胶、黏胶和棉子糖、乳糖、蜜二糖等糖类的组分。以半乳糖苷和半乳糖酐分子存在于蜗牛蛋白腺体、蛙卵、脑神经组织等动物材料中。游离态见于乳汁。与葡萄糖结合构成乳糖。经XIAO酸氧化后可得黏液酸。
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