Sigma-Aldrich C3646 Chitosan from shrimp shells, ≥75% (deacetylated) 25 gr
Marka
Stok Kodu
LB.SA.C3646-25G
| Sigma-Aldrich C3646 Chitosan from shrimp shells, ≥75% (deacetylated) 25 gr |
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Synonym(s): Deacetylated chitin, Poly(D-glucosamine)
CAS Number: 9012-76-4
MDL number: MFCD00161512
NACRES: NA.25
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| PROPERTIES
biological source shrimp shells
Quality Level 200
assay ≥75% (deacetylated)
form powder or flakes
solubility
acetic acid: water: 10 mg/mL, slightly hazy to hazy (with extensive sonication)
H2O: insoluble
organic solvents: insoluble
bulk density 0.15‑0.3 g/cm3
InChI 1S/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
InChI key FLASNYPZGWUPSU-SICDJOISSA-N
DESCRIPTION
Application Forms gels with multivalent anions. Gives clear solutions that dry to strong, clear films. Shrimp shell derived chitosan, deacetylated chitin (poly β-1,4-D-glucosamine), may be used as a biocompatible, antibacterial and environmentally friendly polyelectrolyte biomaterial with a variety of applications including uses in water treatment, chromatography, additives for cosmetics, textile treatment for antimicrobial activity, novel fibers for textiles, photographic papers, biodegradable films, biomedical devices, and microcapsule implants for controlled release in drug delivery. It may be derivatized to further expand its uses.
Packaging
10, 25, 100, 500 gr in poly bottle
Features and Benefits
Biocompatible, antibacterial and environmentally friendly polyelectrolyte with a variety of applications including water treatment, chromatography, additives for cosmetics, textile treatment for antimicrobial activity, novel fibers for textiles, photographic papers, biodegradable films, biomedical devices, and microcapsule implants for controlled release in drug delivery.
Quality
May contain foreign matter.
Preparation Note
Prepared by the alkaline deacetylation of chitin obtained from the shells of shrimp (Pandalus borealis). Chitin is manufactured industrially by crushing shrimp shells, then washing the solids with acids to remove inorganic and proteinaceous material. The purified chitin is deacetylated to chitosan by treatment with a strong base such as sodium hydroxide. The resulting chitosan may be further purified by preparation of solutions in acid followed by neutralization and precipitation.
Analysis Note
The degree of acetylation may be determined by dye binding or titration methods. |
