2,3-Dimethylmaleic anhydride
Synonym(s):2,3-Dimethylmaleic anhydride;3,4-Dimethyl-2,5-furandione;Dimethylmaleic anhydride
- CAS NO.：766-39-2
- Empirical Formula: C6H6O3
- Molecular Weight: 126.11
- MDL number: MFCD00005523
- EINECS: 212-165-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:15:30
What is 2,3-Dimethylmaleic anhydride?
Chemical properties
white to beige crystals or cryst. powder
The Uses of 2,3-Dimethylmaleic anhydride
2,3-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.
Definition
ChEBI: 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.
Safety Profile
Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits acrid smoke and irritating fumes. See also ANHYDRIDES.
Purification Methods
Distil the anhydride from *benzene/ligroin and sublime in a vacuum. [Beilstein 17/11 V 69.]
Properties of 2,3-Dimethylmaleic anhydride
| Melting point: | 93-96 °C (lit.) |
| Boiling point: | 223 °C (lit.) |
| Density | 1.107 g/cm3 (100℃) |
| refractive index | 1.5627 (estimate) |
| Flash point: | 222-223°C |
| storage temp. | 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 |
| CAS DataBase Reference | 766-39-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,5-Furandione, 3,4-dimethyl-(766-39-2) |
| EPA Substance Registry System | 2,5-Furandione, 3,4-dimethyl- (766-39-2) |
Safety information for 2,3-Dimethylmaleic anhydride
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P501:Dispose of contents/container to..… |
Computed Descriptors for 2,3-Dimethylmaleic anhydride
2,3-Dimethylmaleic anhydride manufacturer
Neochemsys
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