beta-L-xylofuranose
DL-Arabinose
CAS: 147-81-9
Molecular Formula: C5H10O5
beta-L-xylofuranose - Names and Identifiers
| Name | DL-Arabinose |
| Synonyms | Arabinose DL-Arabinose beta-L-xylofuranose (4xi)-D-threo-pentose |
| CAS | 147-81-9 |
| EINECS | 205-699-8;243-619-3 |
| InChI | InChI=1/C5H10O5/c6-1-2-3(7)4(8)5(9)10-2/h2-9H,1H2/t2-,3+,4-,5-/m0/s1 |
beta-L-xylofuranose - Physico-chemical Properties
| Molecular Formula | C5H10O5 |
| Molar Mass | 150.13 |
| Density | 1.681g/cm3 |
| Melting Point | 158-161℃ |
| Boling Point | 375.36°C at 760 mmHg |
| Specific Rotation(α) | D12 +173° (6 min) D20 +105.1° (22 hrs c = 3) |
| Flash Point | 180.812°C |
| Water Solubility | soluble |
| Solubility | Soluble in water and glycerin, insoluble in ethanol and ether. |
| Vapor Presure | 0mmHg at 25°C |
| Appearance | White fine crystalline powder |
| Color | White to Off-White |
| Merck | 14,761 |
| pKa | 12.46±0.20(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.612 |
| MDL | MFCD00135867 |
| Physical and Chemical Properties | Melting point 158-161°C water-soluble solution |
| Use | Uses arabinose (arabinose) arabinose, also known as pectose, is often combined with other monosaccharides and exists in plant pulp, colloid, hemicellulose, pectic acid, pine cypress tree heartwood, bacterial polysaccharide, and some glycosides in the form of heteropolysaccharides. There are eight isomers of arabinose, such as β-D-arabinose, β-L-arabinose, etc. There are mainly two kinds of arabinose industrial products: D-arabinose can be obtained by degrading D-glucose, which is relatively rare in nature and mainly appears in some bacterial polysaccharides. Natural L-arabinose can be obtained from D-xylose by enzymatic isomerization of uridine diphosphate derivatives, and can also be extracted from arabinose in corn husk hemicellulose. |
beta-L-xylofuranose - Risk and Safety
| Safety Description | S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| TSCA | Yes |
beta-L-xylofuranose - Reference
| Reference Show more | 1. Huang Hui, Yang Lizhi, Yang Xianqing, et al. Separation, Purification and Component Analysis of Polysaccharides from South China Sea Kite Squid Ink [J]. Food Science 2017(24):118-123. 2. Bai Liqin, Yang Xin, Li Chong, Li Yandong, Xiao Miao, Hao Jianxiong, Zhao Dandan, Liu Lu, Li Shenglin, Han Xue. Nutritional Composition Analysis and Antioxidant Activity Evaluation of Xueyan [J]. Food research and development, 2021,42(02):18-25. 3. [IF = 4.813] Liu Guiyang et al."Effects of bifidobacteria-produced exopolysaccharides on human gut microbiota in vitro." Appl Microbiol Biot. 2019 Feb;103(4):1693-1702 4. [IF = 6.953] Huihui Ke et al."Polysaccharide from Rubus chingii Hu affords protection against palmitic acid-induced lipotoxicity in human hepatocytes." Int J Biol Macromol. 2019 Jul;133:1063 5. [IF = 6.953] Zhou Dong et al."Purification and comparative study of bioactivities of a natural selenized polysaccharide from Ganoderma Lucidum mycelia." Int J Biol Macromol. 2021 Nov;190:101 6. [IF = 5.275] Qiting Pan et al."Extraction, structural characterization, and antioxidant and immunomodulatory activities of a polysaccharide from Notarchus leachii freeri eggs." Bioorg Chem. 2021 Nov;116:105275 7. [IF = 3.645] Jiayi Hu et al."Determination and analysis of monosaccharides in Polygonatum cyrtonema Hua polysaccharides from different areas by ultra-high-performance liquid chromatography quadrupole trap tandem mass spectrometry." J Sep Sci. 2021 Sep;44(18):3506-3515 8. [IF = 2.19] Qingsong Zheng et al."Effects of different extraction methods on the structure, antioxidant activity, α-amylase, and α-glucosidase inhibitory activity of polysaccharides from Potentilla discolor Bunge." J Food Process Pres. 2021 Oct;45(10):e15826 9. [IF = 6.953] Wenjing Li et al."Protective effects of Polygonatum kingianum polysaccharides and aqueous extract on uranium-induced toxicity in human kidney (HK-2) cells." Int J Biol Macromol. 2022 Mar;202:68 |
beta-L-xylofuranose - Nature
| specific rotation | D12 173° (6 min) D20 105.1° (22 hrs c = 3) |
| Solubility | Methanol (Slightly, Heated, Sonicated), Water (Slightly) |
| morphology | Solid |
| BRN | 1723086 |
Last Update：2024-04-09 01:59:49
beta-L-xylofuranose - Uses and synthesis methods
product features
arabinose is a five-carbon aldose prepared from gum by hydrolysis. It usually exists in a bound state in the body. It is a component of various gums, hemicelluloses, pectin substances and other polysaccharides and some glycosides. There are three kinds of optical isomers, mainly L-type, most of which have little difference in properties, white crystal, 1.585 relative density, melting point 155.5~156.5 ℃. Soluble in water and glycerin, insoluble in ethanol and ether. Used in medicine and as a medium. In addition to being prepared from the gum or cherry tree glue of the glandular bean tree, it can also be prepared by the action of calcium dextrogluconate and hydrogen peroxide. Yeast cannot ferment it.
L-arabinose is a commonly used food additive, also known as pectose, L-arabinose and L-arabinose. Its appearance is orthogonal prismatic crystal at normal temperature. Melting point 159.5 ℃; Density α-D204 1.585,β-D4201.625; Optical rotation [α]D20 +105 (C = 3, in water); Very soluble in water, slightly soluble in ethanol, insoluble in ethanol. It can be obtained by local hydrolysis of mesprite gum. Or use 4% acetic acid to treat the crushed corn cob at 100 ℃ for 2 hours, separate and wash with water, then use 1% H2SO4 to treat the cob at 100 ℃, concentrate the hydrolysate, separate, and use charcoal under vacuum. Treatment, remove minerals through ion exchange, that is, 5 ~ 5.5% L-arabinose.
Pyramarabinose
There are five forms of arabinose:
L-β-pyramarabinose: orthorhombic crystals obtained from ethanol aqueous solution, melting point 159~160 ℃, relative density 1.625,[α]D20 +190. 5~104.5 (c = 3)(variable rotation), soluble in water, slightly soluble in ethanol, 1g soluble in 1ml of water, 250ml of 90% ethanol, insoluble in ether and benzene, Ka =-3.7 × 10-13 at 17 ℃.
L-α-pyramarabinose: orthorhombic or prismatic crystals from ethanol aqueous solution, melting point 159~160 ℃, relative density 1.585, solubility similar to L-β-sugar.
D-β-pyramarabinose: crystallized in methanol, melting point 155.5~165.5 ℃, relative density 1.625,[α]D20-175~108 ° (variable rotation). Soluble in water, slightly soluble in methanol, insoluble in ether.
D-α-pyramarabinose: crystallized in methanol, melting point 155.5~165.5 ℃, relative density 1.585, solubility the same as D-β-sugar. The ferrin solution can be reduced, heated to 200 ℃ in the sealed tube to generate furfural, reduced with NaBH4 to generate arabinitol, and oxidized with Br2 to obtain the corresponding sugar acid, which forms oxime with NH2OH, and reacts with phenylhydrazine to generate hydrazine. It is widely found in plants in the form of polysaccharides, but also in Mycobacterium.
preparation method: it is obtained from the separation of plugin gum and cedar, or from the reaction of D-glyceraldehyde and 2-glycolic acid at pH11 [adjusted by Ba(OH)2] to generate valaldose sugar mixture, which is separated by cellulose column, or can be obtained from the reaction of calcium gluconate and H2O2/Fe3 +. Uses: Used as medicine and culture medium.
biological activity
Arabinose is an endogenous metabolite.
Last Update：2024-04-09 01:59:49
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Product Name: Xylose Impurity 18 Visit Supplier Webpage Request for quotationCAS: 147-81-9
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
Multiple SpecificationsSpot supply
Product Name: DL-Arabinose Visit Supplier Webpage Request for quotationCAS: 147-81-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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