|
Product Name: |
α-L-Rhamnopyranose monohydrate |
|
Synonyms: |
6-DEOXY-L-MANNOSE MONOHYDRATE;L(+)-RHAMNOSE MONOHYDRATE, FOR MICROBIOL OGY;Rhamnose99%;1-RHAMNOSEMONOHYDRATE;6-Deoxy-L-mannose;L-Rhamnose monohydrate;Α-L-RHAMNOSE MONOHYDRATE;L-Rhamnose 6155-35-7 |
|
CAS: |
6155-35-7 |
|
MF: |
C6H14O6 |
|
MW: |
182.17 |
|
EINECS: |
639-370-9 |
α-L-Rhamnopyranose monohydrate Chemical properties
| Melting point | 90-95 °C(lit.) |
| alpha | [α]D20 +7.7～+8.5゜ (c=5, H2O) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | H2O: 0.1 g/mL, clear, colorless |
| form | Solid |
| color | White to Off-White |
α-L-Rhamnopyranose monohydrate Usage And Synthesis
| Chemical Properties | L-Rhamnopyranose is also known as mannose methyl sugar. It is a methyl five-carbon sugar. There are two isomers of L-type and D-type. The [α]D16.5 of D-rhamnose in water is -8.25°, The [α]D15 of L-rhamnose is +9.1°. L-rhamnose is a type of deoxyhexose, namely 6-de-oxy L-mannose, which is a component of plant cell walls and various glycosides. α formula: colorless crystal. Those crystallized from aqueous solutions are crystals containing crystal water. The melting point is 105°C. Soluble in water and methanol. There are optical activity and mutarotation phenomenon. The abundance in marine plankton is generally greater than arabinose. It is also present in sea water, particulate matter and sediments. It can exist in free or combined form. |
| Uses |
L-Rhamnose monohydrate is the composition of plum leaf polysaccharides. L-Rhamnose characteristic a sweet and slightly bitter taste similar to that of D-mannose. which is a typical 6-deoxyhexose, it has been found that sugar chains comprising various monosaccharides have physiological activities. Thus, there have been attempts to utilize these sugar chains as materials for pharmaceuticals and agricultural chemicals. L-Rhamnose or its derivatives are sometimes used as the components of these sugar chains. Also it would be furthermore expected to be available as a material for a reaction flavor since it would under the Maillard reaction with an amino acid to thereby generate a characteristic smell. |
Rhamnose, also known as mannomethyllose, is a methyl five-carbon sugar, with L-type and D-type isomers. In water, the [α]D16.5 of D-rhamnose is -8.25°, and the [α]D15 of L-rhamnose is +9.1°. L-rhamnose is a kind of deoxyhexaloxide, namely 6-deoxyl-mannose, which is a component of plant cell walls and many glycosides. Type α : colorless crystal. The crystallizer from aqueous solution is a crystal containing water of crystal. Melting point is 105 ℃. Soluble in water and methanol. There is optical activity and rotation phenomenon. The abundance of arabinose in Marine plankton is generally greater than that of arabinose. It's also found in seawater, particulate matter, and sediment. Can exist in free or bound form. Rhamnose α- type and β- type two: α- type, a variety of glycoside components. The melting point of 82 ~ 92℃ will show variable rotation. Optical rotation [α]ChemicalbookD20-7.7°→+8.9°. β-type, formed from acetone needle crystal. Melting point 122 ~ 126℃. The optical rotation [α]D20+31.5° soon becomes the same as the α- type. β-type has hygroscopic property, exposed to wet air that becomes α-type crystal. The sweetness is 33% of sucrose. Rhamnose as a kind of trace sugar is widely distributed in plants. It CAN BE FOUND IN A VARIETY OF PLANT glycoSIDES (such AS querCETIN, isohesperIDin, etc.), polysaccharides, especially pectin and glia, and also in sumac TOXIN. Rhamnose can be used to measure intestinal permeability, used as a sweetener, reducible Fehling solution, and amalgamated with sodium to produce rhamlitol. It can be hydrolyzed from Xanthorhamnin and Quercitin.
Hot Tags: α-l-rhamnopyranose monohydrate cas no.6155-35-7, China, manufacturers, suppliers, factory, custom, wholesale, PB4, TFA, CAS NO 53 43 0, BOC E, R Diphenylprolinol, CAS NO 25561 30 2
