Articles:
chitin from shrimp shells
Notes:
a linear polysaccharide of beta-1->4 linked units of acetylglucosamine. it is the second most abundant biopolymer on earth, found especially in insects and fungi. when deacetylated it is called chitosan. cellulose like biopolymer consisting predominantly of unbranched chains of beta-(1->4)-2-acetamido--2-deoxy-d-glucose. [merck index] Chitin is an unusual substance as it is a naturally occurring polymer. Its breakdown is conducted by bacteria which have receptors to simple sugars from the decomposition of chitin. If chitin is detected they then produce enzymes to digest the chitin by reducing it to simple sugars and ammonia.
Chitin (IPA: [Kaitin]) is one of the main components in the cell walls of fungi, the exoskeletons of insects and other arthropods, and in some other animals. It is a polysaccharide; it is constructed from units of acetylglucosamine (more completely, N-acetyl-D-glucos-2-amine). These are linked together in beta-1,4 fashion (in a similar manner to the glucose units which form cellulose). In effect chitin may be described as cellulose with one hydroxyl group on each monomer replaced by an acetylamine group. This allows for increased hydrogen bonding between adjacent polymers, giving the polymer increased strength.
A linear polysaccharide of beta-1->4 linked units of acetylglucosamine. It is the second most abundant biopolymer on earth, found especially in insects and fungi. When deacetylated it is called chitosan. [HMDB]
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| CAS Number: | 1398-61-4 |  3D/inchi
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| Other(deleted CASRN): | 191802-95-6 | |
| ECHA EINECS - REACH Pre-Reg: | 215-744-3 | |
| FDA UNII: | 8SH93A7QWW | |
| Nikkaji Web: | J419.924C | |
| MDL: | MFCD00466914 | |
| XlogP3: | -1.70 (est) | |
| Molecular Weight: | 221.20975000 | |
| Formula: | C8 H15 N O6 | |
| BioActivity Summary: | listing | |
| NMR Predictor: | Predict (works with chrome or firefox) | |
Category: abrasives, bulking agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
| Google Scholar: | Search |
| Google Books: | Search |
| Google Scholar: with word "volatile" | Search |
| Google Scholar: with word "flavor" | Search |
| Google Scholar: with word "odor" | Search |
| Google Patents: | Search |
| US Patents: | Search |
| EU Patents: | Search |
| Pubchem Patents: | Search |
| PubMed: | Search |
| NCBI: | Search |
| FDA/DG SANTE Petitions, Reviews, Notices: | |
| GRN 412 | Chitin-glucan from Aspergillus niger View - notice PDF |
Physical Properties:
| Food Chemicals Codex Listed: | No |
| Boiling Point: | 1139.91 °C. @ 760.00 mm Hg (est) |
| Flash Point: | 1190.00 °F. TCC ( 643.20 °C. ) (est) |
| logP (o/w): | -2.640 (est) |
| Soluble in: | |
| water, 1e+006 mg/L @ 25 °C (est) | |
Organoleptic Properties:
| Odor and/or flavor descriptions from others (if found). | |
Cosmetic Information:
| CosIng: | cosmetic data |
| Cosmetic Uses: |
abrasives bulking agents |
Suppliers:
| BOC Sciences |
| For experimental / research use only. |
| Chitin |
| Carbosynth |
| For experimental / research use only. |
| Chitin |
| ExtraSynthese |
| For experimental / research use only. |
| Chitin |
| Glentham Life Sciences |
| Chitin, fungal origin |
| Glentham Life Sciences |
| Chitin |
| ICHIMARU PHARCOS |
| Crab (chitin and chitosan)
Odor: characteristic Use: These substances are derived from the exoskeletons of crabs, shrimp, and other crustaceans, and ICHIMARU PHARCOS was the first to apply carboxymethyl chitin and hydroxypropyl chitosan to skin- and hair-care products. |
| Maypro Industries |
| Chitin |
| Santa Cruz Biotechnology |
| For experimental / research use only. |
| Chitin |
| Sigma-Aldrich: Sigma |
| For experimental / research use only. |
| Chitin from shrimp shells |
| Universal Preserv-A-Chem Inc. |
| VITAPURE FEELING |
Safety Information:
| Preferred SDS: View | |
| Hazards identification | |
| Classification of the substance or mixture | |
| GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) | |
| None found. | |
| GHS Label elements, including precautionary statements | |
| Pictogram | |
| Hazard statement(s) | |
| None found. | |
| Precautionary statement(s) | |
| None found. | |
| Oral/Parenteral Toxicity: | |
|
intravenous-rat LD50 50 mg/kg LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA Bolletino della Societe Italiana di Biologia Sperimentale. Vol. 44, Pg. 1685, 1968. | |
| Dermal Toxicity: | |
| Not determined | |
| Inhalation Toxicity: | |
| Not determined | |
Safety in Use Information:
| Category: | abrasives, bulking agents | ||
| Recommendation for chitin usage levels up to: | |||
| not for fragrance use. | |||
| Recommendation for chitin flavor usage levels up to: | |||
| not for flavor use. | |||
Safety References:
| EPI System: | View |
| ClinicalTrials.gov: | search |
| Daily Med: | search |
| Chemical Carcinogenesis Research Information System: | Search |
| AIDS Citations: | Search |
| Cancer Citations: | Search |
| Toxicology Citations: | Search |
| EPA Substance Registry Services (TSCA): | 1398-61-4 |
| EPA ACToR: | Toxicology Data |
| EPA Substance Registry Services (SRS): | Registry |
| Laboratory Chemical Safety Summary : | 6857375 |
| National Institute of Allergy and Infectious Diseases: | Data |
| WGK Germany: | 3 |
| N-[(2R)-2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide | |
| Chemidplus: | 0001398614 |
References:
| N-[(2R)-2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide | |
| NIST Chemistry WebBook: | Search Inchi |
| Pubchem (cid): | 6857375 |
| Pubchem (sid): | 135129359 |
Other Information:
| (IUPAC): | Atomic Weights of the Elements 2011 (pdf) |
| Videos: | The Periodic Table of Videos |
| tgsc: | Atomic Weights use for this web site |
| (IUPAC): | Periodic Table of the Elements |
| CHEBI: | View |
| CHEMBL: | View |
| Metabolomics Database: | Search |
| HMDB (The Human Metabolome Database): | HMDB03362 |
| FooDB: | FDB023154 |
| VCF-Online: | VCF Volatile Compounds in Food |
| ChemSpider: | View |
| Wikipedia: | View |
Potential Blenders and core components note
| None Found | ||
Potential Uses:
| biological additives |
Occurrence (nature, food, other): note
| crab shell Search PMC Picture |
Synonyms:
| chitin from shrimp shells | |
| N-[(2R)-2,4,5- | trihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide |