API Raw Materials Rhamnose CAS 6155-35-7 White Powder With Best Price and Fast Delivery



Product Description

Rhamnose, also known as mannose methyl sugar, is a methyl five-carbon sugar with two isomers of L-form and D-form. The [α]D16.5 of D-rhamnose in water is -8.25. °, [α] D15 of L-rhamnose is +9.1°. L-rhamnose is a type of deoxyhexanalose, 6-deoxy-L-mannose, which is a component of plant cell walls and various glycosides. α type: colorless crystal. Crystallized from aqueous solution is a crystal containing crystal water. 105 ° C melting point. Soluble in water and methanol. It has optical activity and rotation. The abundance in marine plankton is generally greater than that of arabinose. Also found in seawater, particulate matter and sediments. It may be present in free or combined form. Rhamnose is divided into two types, α-form and β-form: α-form, a component of various glycosides. The melting point of 82 ~ 92 ° C, will change the role of rotation. Optical rotation [α] D20-7.7° → +8.9°. Β-form, formed into needle crystals from acetone. The temperature of 122 ~ 126 ° C. The optical rotation [α] D20 + 31.5 °, soon after the same as the α-type. The β-form is hygroscopic and becomes α-type crystal when exposed to moist air. The sweetness is 33% of sucrose. Rhamnose is widely distributed in plants as a trace sugar. It can be present in the form of sugars in a wide variety of plant mites (such as ecdysteroids, isohepatites, etc.), polysaccharides, especially pectins and gums, and may also be present in laccase toxins. Rhamnose can be used to determine the permeability of the intestine. It can be used as a sweetener to reduce the Fehling solution and react with sodium amalgam to form rhamitol. 

Detailed Information

L-Rhamnose monohydrate Basic information
 

Function

1.Rhamnose has the function as allergen;

2.Rhamnose used as sweetening agent;

3.Rhamnose can be used to assay the osmosis of intestinal canal;

4.L-rhamnose is used for antibiosis and antineoplastic activity.
 

Application

1. Rhamnose can be used to determine the permeability of the intestine, to synthesize cardiotonic drugs, as a sweetener, and to be used in the production of flavors and fragrances

2. Cardiotonic drugs: Many natural cardiotonic drugs have a L-rhamnosyl group attached to the end of their molecular structure. L-rhamnosyl is an essential basi material in the synthesis of such cardiotonic drugs. At present, L-rhamnose is one of the basic raw materials, and synthetic cardiac drugs are still in the research and development stage and have not yet been put on the market fruit and fragrance.

3. In addition to being directly used as a fragrance product it is also the basic raw material for the synthesis of many fruit flavo in the field of Synthetic fragrance L-rhamnose is mainly used in industrial production for the synthetic fragrance Furaneol. Furaneol plays a very important role

4. Food Additives: L-rhamnose is more specific than ribose and glucose in the reaction with other substances to form flavor substances. Five species of flavoring substances are formed from L-rhamnose.