79-16-3
N-Methylacetamide
CAS: 79-16-3
Molecular Formula: C3H7NO
79-16-3 - Names and Identifiers
| Name | N-Methylacetamide |
| Synonyms | NMA CH3CONHCH3 methyl-acetamid ACETMETHYLAMIDE ACETYLMETHYLAMINE N-Methylacetamide N-METHYLACETAMIDE ACETYL METHYLAMIDE Acetylmethylammine N-Acetylmethylamine N-MethylAcetylamide Acetamide, N-methyl dimethylcarboxamide acetamide, N-methyl- LABOTEST-BB LT00779190 N-ACETYL-N-METHYLAMINE ACETIC ACID METHYLAMIDE aceticacid,amide,n-methyl |
| CAS | 79-16-3 |
| EINECS | 201-182-6 |
| InChI | InChI=1/C3H7NO/c1-3(5)4-2/h1-2H3,(H,4,5) |
| InChIKey | OHLUUHNLEMFGTQ-UHFFFAOYSA-N |
79-16-3 - Physico-chemical Properties
| Molecular Formula | C3H7NO |
| Molar Mass | 73.09 |
| Density | 0.957 g/mL at 25 °C (lit.) |
| Melting Point | 26-28 °C (lit.) |
| Boling Point | 204-206 °C (lit.) |
| Flash Point | 227°F |
| Water Solubility | soluble |
| Solubility | Soluble in water, ethanol, benzene, ether, chloroform, insoluble in petroleum ether. |
| Vapor Presure | 12-3680Pa at 15-113℃ |
| Appearance | White crystal |
| Color | Colourless Low-Melting |
| BRN | 1071255 |
| pKa | 16.61±0.46(Predicted) |
| PH | 7 (H2O) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Sensitive | Sensitive to light |
| Explosive Limit | 3.2-18.1%(V) |
| Refractive Index | n20/D 1.433(lit.) |
| MDL | MFCD00008683 |
| Physical and Chemical Properties | White needle-like crystals. Melting point 30.55 ℃(28 ℃), boiling point 206 ℃,140.5 ℃(12kPa), relative density 0.9571(25/4 ℃), refractive index 1.4301, flash point 108 ℃. Soluble in water, ethanol, benzene, ether, chloroform, insoluble in petroleum ether. |
| Use | Used as a solvent, also used in pharmaceutical |
79-16-3 - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | 61 - May cause harm to the unborn child |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| WGK Germany | 2 |
| RTECS | AC5960000 |
| TSCA | Yes |
| HS Code | 29241900 |
| Toxicity | LD50 oral in rat: 5gm/kg |
79-16-3 - Reference Information
| LogP | -1.05--0.7 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| purpose | This product is an intermediate for organic synthesis such as pesticide and medicine. used as a solvent, also used in pharmaceutical because it has the excellent performance of excellent mechanical properties to dissolve other organic compounds, it is often used as a solvent in organic synthesis. N-methyl acetamide has a catalytic effect on some chemical reactions and is a deacidification agent in non-polar solvents. |
| production method | results from the reaction of ethyl acetate with methylamine. Ethyl acetate and 65% methylamine were mixed and heated to about 60 ° C., and the reaction was continued for 4 days and night until there was no more stratification, I .e., the reaction was completed. Ethanol was recovered by distillation under reduced pressure, and a 95-110 ° C. (4.0kPa) fraction was collected to obtain N-methylacetamide. |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 5000 mg/kg |
| flammability hazard characteristics | flammable; Toxic NOx gas |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| extinguishing agent | dry powder, foam, sand, water |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:52:54
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