Basic information
- Standard SMILES
CC1=C(C)C(=O)OC1=O- InChIKey
MFGALGYVFGDXIX-UHFFFAOYSA-N- Molecular formula
- C6H6O3
- Average molar mass
- 126.11 g/mol
- Monoisotopic mass
- 126.03169405
Overview
2,3-Dimethylmaleic anhydride is a butenolide.
Names & identifiers
- Preferred name
- Dimethylmaleic anhydride
- IUPAC
- 3,4-dimethylfuran-2,5-dione
- English name
- 2,3-Dimethylmaleic anhydride
- Molecular formula
- C6H6O3
- Molecular weight
- 126.11
Names & synonyms
Show more names
Database identifiers
- CAS
766-39-2- PubChem CID
- 13010
- DTXSID
DTXSID6061103- ChEMBL
CHEMBL2270559- ChEBI
CHEBI:182178- UNII
- 6PP3N541QA
- EC Number
- 212-165-8
- Nikkaji
- J36.810E
Properties
Computed structural properties
- XLogP
- 0.6
- Topological polar surface area
- 43.4 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 0
- Heavy atoms
- 9
- Formal charge
- 0
- Complexity
- 190
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 93 · 93-96 °C (lit.)
- Boiling point
- 223 °C · 223 °C (lit.)
- Density
- 1.107 g/cm3 · 1.107 g/cm3 (100℃)
- refractive index
- 1.5627 · 1.5627 (estimate)
- Flash point
- 222 · 222-223°C
- storage temp.
- 30 °C · Store below +30°C.
- solubility
- Chloroform (Slightly), Ethyl Acetate (Slightly)
- form
- Solid
- color
- White to Off-White
- Water Solubility
- Soluble in ethanol, ether and chloroform. Slightly soluble in water.
- Sensitive
- Moisture Sensitive
- BRN
- 112044 · 112044
- InChI
- 1S/C6H6O3/c1-3-4(2)6(8)9-5(3)7/h1-2H3
- InChIKey
- MFGALGYVFGDXIX-UHFFFAOYSA-N
- SMILES
- CC1=C(C)C(=O)OC1=O
- LogP
- 0.183 · 0.183 (est)
- CAS DataBase Reference
- 766 · 766-39-2(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 6 PP3N541QA · 6PP3N541QA
- NIST Chemistry Reference
- 2 · 2,5-Furandione, 3,4-dimethyl-(766-39-2)
- EPA Substance Registry System
- 2 · 2,5-Furandione, 3,4-dimethyl- (766-39-2)
- UNSPSC Code
- 12352115 · 12352115
- NACRES
- 23 · NA.23
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 302 · H302
- Precautionary statements
- 264 · P264-P270-P301+P312-P501
- PPE
- 95 · dust mask type N95 (US), Eyeshields, Gloves
- Hazard Codes
- Xn,Xi
- Risk Statements
- 22 · 22
- Safety Statements
- 45 · 45-36/37/39-28A-26
- WGK Germany
- 3 · 3
- RTECS
- 4025000 · ON4025000
- F
- 9 · 9-21
- TSCA
- TSCA listed
- HS Code
- 2917 · 2917 19 80
- Storage Class
- 11 · 11 - Combustible Solids
- Hazard Classifications
- 4 Oral · Acute Tox. 4 Oral
- Hazardous Substances Data
- 766 · 766-39-2(Hazardous Substances Data)
Safety & regulation
GHS classification
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.
Hazard information
Toxicology
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
THE MALEIC ANHYDRIDES, A SERIES OF REVERSIBLE ACYLATING AGENTS, PRODUCED THE ASPIRIN-TYPE DEFECT IN PLATELET AGGREGATION. UNLIKE THE ANTIPLATELET EFFECT OF ASPIRIN WHICH WAS IRREVERSIBLE, THE ANTIPLATELET EFFECT OF 2,3-DIMETHYLMALEIC ANHYDRIDE DISAPPEARED IN APPROXIMATELY 80 MINUTES AT 25 DEG.
Non-Human Toxicity Excerpts
2,3-DIMETHYLMALEIC ANHYDRIDE, A REAGENT REMOVING POSITIVE CELL SURFACE CHARGES, DECREASED THE AGGREGATION OF CHICK EMBRYO NEURAL RETINA CELLS IN CULTURE. TWENTY-FOUR HOURS AFTER 2,3-DIMETHYLMALEIC ANHYDRIDE WAS REMOVED FROM THE MEDIUM, THE MOBILITIES OF THE CELLS WERE SIMILAR TO THOSE OF THE CONTROLS.
ALPHA,BETA-DIMETHYLMALEIC ANHYDRIDE INDUCED SARCOMAS IN 3 OF 5 RATS. ARACHIS OIL, USED AS THE VEHICLE, WAS NONCARCINOGENIC IN 0.5 ML DOSES IN RATS.
THE REACTION OF DIMETHYLMALEIC ANHYDRIDE WITH AMINO GROUPS AT SURFACE OF THE EGGS OF SEA URCHIN DID NOT PREVENT FERTILIZATION.
Safety data
- F
- 9-21
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- ON4025000
- hs_code
- 2917 19 80
- risk_code
- 22
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xn,Xi
- safety_code
- 45-36/37/39-28A-26
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H302
- Hazard Classifications
- Acute Tox. 4 Oral
- Precautionary statements
- P264-P270-P301+P312-P501
- Hazardous Substances Data
- 766-39-2(Hazardous Substances Data)
Chemistry & industry
Uses & manufacturing
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
Applications
Uses2,3-Dimethylmaleic anhydride can be usually used in the synthesis of maleimides and as an amino group protecting agent for superoxide dismutase. It is also used in the preparation of dimethylmaleic acid dimethyl ester. Further, it serves as a reactant in the dissociation of ribosomal proteins. In addition to this, The isolated molecule 2, 3-dimethylmaleic anhydride showed potent insecticidal activity in fumigation bioassay against several insect species, viz., adults of houseflies, cockroaches and stored-product insects.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers50 total
Additional notes
DefinitionChEBI: 2,3-Dimethylmaleic anhydride is a butenolide. It is a 5-membered cyclic anhydride with a double bond between carbon atoms C2 and C3. The double bond locks the molecule in a planar conformation and stabilizes the acid anhydride against hydration. It was used as linker to a cell penetrating peptidebased nanoparticle.
Related reactions
Linked notes
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