If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
417963
Chitosan
from shrimp shells, practical grade
Synonym(s):
Deacetylated chitin, Poly(D-glucosamine), Chitosan & derivatives
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
25 g | Estimated to ship onMay 26, 2026fromMILWAUKEE | $64.50 |
100 g | Estimated to ship onMay 26, 2026fromMILWAUKEE | $241.00 |
About This Item
$64.50
Estimated to ship onMay 26, 2026Details
biological source
shrimp shells
Quality Segment
grade
practical grade
form
solid
mol wt
190000-375000 Da
viscosity
>200 cP, 1 wt. % in 1% acetic acid(20 °C, Brookfield)(lit.)
solubility
1 M acetic acid: 10 mg/mL
SMILES string
N([C@H]1[C@@H](O[C@@H]([C@H]([C@@H]1O)O[C@@H]4O[C@@H]([C@H]([C@@H]([C@H]4N)O)O[C@@H]5O[C@@H]([C@H]([C@@H]([C@H]5N)O)O[C@@H]6O[C@@H]([C@H]([C@@H]([C@H]6N)O)O[C@@H]7O[C@@H]([C@H]([C@@H]([C@H]7N)O)O[C@@H]8O[C@@H]([C@H]([C@@H]([C@H]8N)O)O[C@@H]9O[C@@H]([C@H](
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
Application
Features and Benefits
Physical form
1 of 1
This Item | |||
|---|---|---|---|
| biological source shrimp shells | biological source shrimp shells | biological source - | biological source - |
| grade practical grade | grade - | grade - | grade - |
| solubility 1 M acetic acid: 10 mg/mL | solubility acetic acid: water: 10 mg/mL, slightly hazy to hazy (with extensive sonication), H2O: insoluble, organic solvents: insoluble | solubility - | solubility dilute aqueous acid: soluble |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| form solid | form powder or flakes | form powder or chunks (or Fibers) | form powder |
| mol wt 190000-375000 Da | mol wt - | mol wt >300 kDa | mol wt - |
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Storage Class
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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Can I use this type of chitosan for the production of a medical device or a cosmetic product?
1 answer-
This product is intended for research use only. It is not suitable for any other purpose, which includes, but is not limited to, unauthorized commercial use, in vitro diagnostic use, or therapeutic use in humans or animals. Currently, there is no product option available that would be suitable for this application.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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May I know the particle size ranges you offer for chitosan from shrimp shells (25 g)?
1 answer-
The particle size is not a test specification for this product.
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I want to know the specification chitosan for tomato coating, Which type of chitosan solution we use? low, high or medium molecular weight ,,,,,,,,,,,,,,,,,,,,,please if possible explained it
1 answer-
This product is intended for research use only. It is not suitable for human or other commercial use. No application testing is performed on this compound. For research purposes in shelf life extension of tomatoes it would be best to check the literature. See the link below to peer reviewed papers that may be helpful:
https://www.sigmaaldrich.com/search/417963?focus=papers&page=1&perpage=30&sort=relevance&term=417963&type=citation_searchHelpful?
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What is the molecular weight of the Chitosan, Product 417963, polymer?
1 answer-
The molecular weight is not measured during quality control and is not guaranteed for this chitosan product. We have an estimated value from the vendor as 190,000->375,000, which is based on the viscosity of 200-2000 mPa.s.
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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What is the solubility of Chitosan, Product 417963?
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Product No. 417963 is tested for solubility using 50 mg of chitosan in 5 mL of 1M acetic acid. Solubilization may require heat and sonication. This is a practical grade material, so some insolubles may exist.
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What are some uses for Chitosan, Product 417963?
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Chitosan has recently found many applications in the field of biomaterials. It has been studied for use in biodegradable films, biomedical devices, drug-delivery applications, etc.
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