2-Pyrrolidinone, 5-methyl-
5-methyl-2-pyrrolidinone
CAS: 108-27-0
Molecular Formula: C5H9NO
2-Pyrrolidinone, 5-methyl- - Names and Identifiers
| Name | 5-methyl-2-pyrrolidinone |
| Synonyms | Methylpyrrolidone 5-METHYLBUTYROLACTAM 5-Methyl-2-pyrrolidone 5-METHYL-2-PYRROLIDONE 5-methylpyrrolidin-2-one 5-methyl-2-pyrrolidinone 5-METHYL-2-PYRROLIDINONE 2-Pyrrolidinone,5-methyl- 2-Pyrrolidinone, 5-methyl- (5R)-5-methylpyrrolidin-2-one 2-Pyrrolidinone,5-methyl-,(±)- 5-Methyl-1-azacyclopentan-2-one (R,S)-5-Methyl-pyrrolidin-2-one |
| CAS | 108-27-0 |
| EINECS | 203-566-9 |
| InChI | InChI=1/C5H9NO/c1-4-2-3-5(7)6-4/h4H,2-3H2,1H3,(H,6,7)/t4-/m1/s1 |
2-Pyrrolidinone, 5-methyl- - Physico-chemical Properties
| Molecular Formula | C5H9NO |
| Molar Mass | 99.13 |
| Density | 1.0458 |
| Melting Point | 41-43°C(lit.) |
| Boling Point | 248°C(lit.) |
| Flash Point | >230°F |
| Vapor Presure | 0.0377mmHg at 25°C |
| Appearance | powder to lump to clear liquid |
| Color | White or Colorless to Light yellow |
| pKa | 16.68±0.40(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.4431 (estimate) |
| MDL | MFCD00005273 |
2-Pyrrolidinone, 5-methyl- - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
2-Pyrrolidinone, 5-methyl- - Introduction
5-Methyl-2-pyrrolidone (also known as Methylpyrrolidone or NMP) is a colorless to pale yellow liquid. It has a strong odor and a low vapor pressure. The following is a detailed description of the properties, uses, preparation and safety information of 5-methyl -2-pyrrolidone:
Nature:
-Appearance: Colorless to light yellow liquid
-Molecular formula: C5H9NO
-Molecular weight: 99.13g/mol
-Boiling Point: 202-204°C
-Density: 1.03g/cm³
-Solubility: Soluble in water and many organic solvents
-ignition point: 95°C
Use:
-As a solvent: 5-methyl-2-pyrrolidone is an excellent solvent, which can be used in many chemical reactions, such as dissolving and separating compounds, dissolving plastics, dyes and synthetic cellulose.
-Industrial applications: The compound is widely used in electronics, plastics, paints and coatings, pesticides, medicine, oil and natural gas and other fields.
-Battery manufacturing: 5-methyl-2-pyrrolidone is used as a solvent and electrolyte in the battery manufacturing process.
Preparation Method:
5-Methyl-2-pyrrolidone can be prepared by the reaction of pyrrolidone and methylpropanol or methylamine. Specific synthesis methods include gas phase method, liquid phase method and high temperature synthesis.
Safety Information:
-5-Methyl-2-pyrrolidone is moderately toxic and may have negative effects on the reproductive system, central nervous system, and respiratory system. It is irritating and corrosive to the skin, so do not touch it on the skin.
-Use appropriate protective measures, including wearing appropriate protective gloves, goggles and respiratory protective equipment. Ensure adequate ventilation during operation.
-Avoid reacting with oxidants and strong acids, and avoid contact with fire sources.
Nature:
-Appearance: Colorless to light yellow liquid
-Molecular formula: C5H9NO
-Molecular weight: 99.13g/mol
-Boiling Point: 202-204°C
-Density: 1.03g/cm³
-Solubility: Soluble in water and many organic solvents
-ignition point: 95°C
Use:
-As a solvent: 5-methyl-2-pyrrolidone is an excellent solvent, which can be used in many chemical reactions, such as dissolving and separating compounds, dissolving plastics, dyes and synthetic cellulose.
-Industrial applications: The compound is widely used in electronics, plastics, paints and coatings, pesticides, medicine, oil and natural gas and other fields.
-Battery manufacturing: 5-methyl-2-pyrrolidone is used as a solvent and electrolyte in the battery manufacturing process.
Preparation Method:
5-Methyl-2-pyrrolidone can be prepared by the reaction of pyrrolidone and methylpropanol or methylamine. Specific synthesis methods include gas phase method, liquid phase method and high temperature synthesis.
Safety Information:
-5-Methyl-2-pyrrolidone is moderately toxic and may have negative effects on the reproductive system, central nervous system, and respiratory system. It is irritating and corrosive to the skin, so do not touch it on the skin.
-Use appropriate protective measures, including wearing appropriate protective gloves, goggles and respiratory protective equipment. Ensure adequate ventilation during operation.
-Avoid reacting with oxidants and strong acids, and avoid contact with fire sources.
Last Update：2024-04-09 02:00:41
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CAS: 108-27-0
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CAS: 108-27-0
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Mobile: 18021002903
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