Chitosan

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What is the Chitosan ?

Chitosan is white Powder, while it's Molecular Formula is (C6H11NO4)n. chitosan is a film-forming polysaccharide that can aid the skin’s moisture content and moisture-retention capacity by preventing transepidermal water loss. In addition, it appears to help bind other ingredients (for example, to increase liposome stability), thereby increasing the availability of active ingredients to the skin. Anti-bacterial properties are also associated with chitosan, as well as an ability to enhance the microbiological stability of a preparation. Some studies show that it can help improve the water-resistance properties of sun protection creams and lotions, and the longevity of a fragrance’s scent (the perfume adheres more strongly to the skin and evaporates more slowly, over a longer period). It acts as a skin conditioner, improving skin softness and suppleness. It may be found in moisturizers, sunscreens, and acne preparations, in addition to hair care products. It is the decarboxylated form of chitin and can hold water without creating a feeling of tackiness in a cosmetic preparation. According to some chitosan suppliers, the use of shrimp shells is one of the most important sources. They consist of 30–35 percent protein, 30–35 percent minerals, and 15–20 percent chitin, with some traces of lipids, dyes, and soluble proteins.

What is the CAS number for Chitosan ?

The CAS number of Chitosan is 9012-76-4.

More information of Chitosan 9012-76-4 are:

What is Chitosan (9012-76-4) used for?

Chitosan is a unique basic polysaccharide obtained by N-deacetylation of chitin in an alkaline medium. This alkaline consists mainly of β-(1-4)-2-acetamido-2-deoxy-D-glucose units. Besides, it is the second most abundant biopolymer on Earth after cellulose that can be found in crustacean shells and the cell walls of fungi. Another feature of chitosan is that it is a copolymer of N-acetyl-D-glucosamine and D-glucosamine. Protonation of the NH2 functional group on the C-2 position of the D-glucosamine repeating unit makes it easily soluble in aqueous acidic media and it results in the conversion of the polysaccharide to a polyelectrolyte in acidic media. Chitosan shows more potential than chitin for use in different applications as a result of the presence of its NH2 groups. It has good properties including biodegradability, biocompatibility, and antibacterial activity. Chitosan has abundant applications in different fields because it is the one and only pseudonatural cationic polymer. Generally it is prepared by deacetylation of α-chitin using 40%-50% aqueous alkali solution at 100℃-160℃. This preparation takes a few hours. As a result of this, newly derived chitosan has a degree of deacetylation (DD) up to 0.95.Chitosan is provided with high adsorption capacity and selectivity by many -NH2 and -OH groups that can chelate heavy metal ions. The intermolecular and intramolecular hydrogen bonds are numerous in chitosan molecules. The packing structure of chitosan in the three unit cell directions stabilizes strongly and gives the power to chitosan not to melt at all. Chitosan dissolves only in certain organic acids, like formic, acetic, propionic, lactic, citric, and succinic acids, and in some inorganic solvents, like hydrochloric, phosphoric, and nitric acid.

InChI:InChI=1/C56H103N9O39/c1-87-56(86)65-28-38(84)46(19(10-74)96-55(28)104-45-18(9-73)95-49(27(64)37(45)83)97-39-12(3-67)88-47(85)20(57)31(39)77)103-54-26(63)36(82)44(17(8-72)94-54)102-53-25(62)35(81)43(16(7-71)93-53)101-52-24(61)34(80)42(15(6-70)92-52)100-51-23(60)33(79)41(14(5-69)91-51)99-50-22(59)32(78)40(13(4-68)90-50)98-48-21(58)30(76)29(75)11(2-66)89-48/h11-55,66-85H,2-10,57-64H2,1H3,(H,65,86)/t11-,12-,13-,14-,15-,16-,17-,18-,19-,20-,21-,22-,23-,24-,25-,26-,27-,28-,29-,30-,31-,32-,33-,34-,35-,36-,37-,38-,39-,40-,41-,42-,43-,44-,45-,46-,47-,48+,49+,50+,51+,52+,53+,54+,55+/m1/s1

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