| Dimethylacetamide | |
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N,N-dimethylacetamide |
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Other names
DMAc, DMA, acetic acid-dimethylamide, Dimethylacetamide, acetyldimethylamine |
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| Identifiers | |
| CAS number | 127-19-5 |
| PubChem | 31374 |
| ChemSpider | 29107 |
| UNII | JCV5VDB3HY |
| ChEMBL | CHEMBL11873 |
| RTECS number | AB7700000 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C4H9NO |
| Molar mass | 87.12 g mol−1 |
| Appearance | Colorless liquid with faint ammonia odor |
| Density | 0.94 g/cm3 |
| Melting point |
-20 °C, 253 K, -4 °F |
| Boiling point |
164-166 °C |
| Viscosity | 1.956 cP @ 25 °C 1.279 cP @ 50 °C |
| Hazards | |
| R-phrases | R61 R20/21 |
| S-phrases | S53 S45 |
| Main hazards | Toxic (T) |
| NFPA 704 |
0
2
0
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| Flash point | 70 °C |
| Autoignition temperature |
490 °C |
| Related compounds | |
| Related Compounds | Acetic acid Dimethylamine Dimethylformamide |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Dimethylacetamide is the organic compound with the formula CH3C(O)N(CH3)2. This colorless, water miscible, high boiling liquid is commonly used as a polar solvent in organic chemistry. DMAc is miscible with most other solvents, although it is poorly soluble in aliphatic hydrocarbons.
The chemical reactions of dimethylacetamide are typical of N,N-disubstituted amides. It will hydrolyze in the presence of acids:
Dimethylacetamide is useful as a medium for strong bases such as sodium hydroxide.[1] Dimethylacetamide is commonly used as a solvent for fibers or in the adhesive industry. It is also employed in the production of pharmaceuticals and plasticizers as a reaction medium.