Dimethylmaleic anhydride
Grundinformationen
- CAS
62565-79-1- Standard-SMILES
CC1=C(C)C(=O)OC1=O- InChIKey
MFGALGYVFGDXIX-UHFFFAOYSA-N- Summenformel
- C6H6O3
- Durchschnittliche Molmasse
- 126,11 g/mol
Überblick
2,3-Dimethylmaleic anhydride is a butenolide.
Namen und Bezeichner
- Bevorzugter Name
- Dimethylmaleic anhydride
- IUPAC
- 3,4-dimethylfuran-2,5-dione
- Englischer Name
- 3,4-dimethylfuran-2,5-dione
- Summenformel
- C6H6O3
- Molmasse
- 126.11
Namen und Synonyme
2,3-DIMETHYLMALEIC ANHYDRIDE766-39-2Dimethylmaleic anhydride2,5-Furandione, 3,4-dimethyl-Pyrocinchonic anhydrideMaleic anhydride, dimethyl-Dimethylmaleic acid anhydridealpha,beta-Dimethylmaleic anhydride6PP3N541QADTXSID6061103NSC-92512RefChem:442539
Weitere Namen anzeigen
3,4-Dimethyl-furan-2,5-dione
2,3-dimethyl maleic anhydrideDTXCID5047902212-165-8DMMA3,4-dimethylfuran-2,5-dione3,4-Dimethyl-2,5-furandioneMFCD00005523HSDB 5517
Datenbank-Bezeichner
- CAS
62565-79-1- ChEMBL
CHEMBL2270559- ChEBI
CHEBI:182178- UNII
- 6PP3N541QA
- EC Number
- 212-165-8
- Nikkaji
- J36.810E
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 0,6
- Polarare Oberfläche (TPSA)
- 43,4 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 3
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 9
- Formalladung
- 0
- Komplexität
- 190
Experimentelle und physikochemische Eigenschaften
PolymersPlastics & Rubber -> Acid Anhydrides, Cyclic
SpringerMaterials PropertiesChemical shift
Density1.107 AT 100 °C/4 °C
SolubilityVERY SOL IN ALCOHOL, ETHER, BENZENE, CHLOROFORM; SLIGHTLY SOL IN WATER
Boiling Point223 °C
Melting Point96 °C
Physical DescriptionFine white plates; [MSDSonline]
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
Warning
H302 (87.8%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 49 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Gefahrenhinweise
Hazards SummaryMay decompose on exposure to moisture; May cause irritation; [MSDSonline] See ACID ANHYDRIDES.
Hazard Classes and CategoriesAcute Tox. 4 (87.8%)
Toxikologische Informationen
Interactions
Modification with succinic anhydride of Clostridium perfringens epsilon prototoxin or toxin resulted in a loss of activation by trypsin or lethal activity, respectively. The prototoxin was more sensitive to succinylation than the toxin. On the other hand, the succinylated prototoxin was activated and cleaved by chymotrypsin, but not by trypsin. The lethal activity of the toxin was also lost after treatment with 2,3-dimethylmaleic anhydride or 2,4,6-trinitrobenzenesulfonic acid. When the 2,3-dimethylmaleic anhydride treated toxin treated with succinic anhydride or 2,4,6-trinitrobenzenesulfonic acid was incubated under acidic condition, it regained lethal activity. Thus modification of amino groups (lysine residues) prevented activation of the prototoxin by trypsin, and abolished lethal activity of the toxin.
Human Toxicity Excerpts
Chemie und Industrie
Verwendung und Herstellung
Uses
Used as a research chemical; No known commercial production in the US; [HSDB]
RESEARCH CHEM (CHEM INT FOR ORG SYNTH; PROTEIN REAGENT)
U.S. Production
(1979) NO EVIDENCE OF COMMERCIAL PRODN IN USA
(1981) NO EVIDENCE OF COMMERCIAL PRODN IN USA
Methods of ManufacturingDECARBOXYLATIVE DIMERIZATION OF MALEIC ANHYDRIDE IN THE PRESENCE OF 2-AMINOPYRIDINE
General Manufacturing Information2,5-Furandione, 3,4-dimethyl-: ACTIVE
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