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448869

Sigma-Aldrich

Chitosan

low molecular weight

Synonym(s):
Deacetylated chitin, Poly(D-glucosamine)
CAS Number:
MDL number:

form

powder

mol wt

50,000-190,000 Da (based on viscosity)

viscosity

20-300 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.)

solubility

dilute aqueous acid: soluble

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

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This Item
C36464179631105508
Chitosan low molecular weight

Sigma-Aldrich

448869

Chitosan

Chitosan from shrimp shells, ≥75% (deacetylated)

Sigma-Aldrich

C3646

Chitosan

Chitosan from shrimp shells, practical grade

Sigma-Aldrich

417963

Chitosan

Chitosan United States Pharmacopeia (USP) Reference Standard

USP

1105508

Chitosan

form

powder

form

powder or flakes

form

solid

form

-

solubility

dilute aqueous acid: soluble

solubility

acetic acid: water: 10 mg/mL, slightly hazy to hazy (with extensive sonication), H2O: insoluble, organic solvents: insoluble

solubility

1 M acetic acid: 10 mg/mL

solubility

-

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

-

mol wt

50,000-190,000 Da (based on viscosity)

mol wt

-

mol wt

190000-375000 Da

mol wt

-

viscosity

20-300 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.)

viscosity

-

viscosity

>200 cP, 1 wt. % in 1% acetic acid(20 °C, Brookfield)(lit.)

viscosity

-

Application

Chitosan may be used as a flocculant, in protein precipitation, encapsulating agent and aqueous thickener.
Forms gels with multivalent anions. Gives clear solutions that dry to strong, clear films.

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.

Physical form

75-85% deacetylated

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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