1-Methyl-2-pyrrolidinone, its cas register number is 872-50-4. It also can be called N-Methyl-2-pyrrolidinone ; N-Methyl-2-Pyrrolidone ; NMP ; and N-Methylpyrrolidone . It is hazardous, so the first aid measures and others should be known. In addition, N-methyl-pyrrolidone (CAS NO.872-50-4) could be stable at room temperature in closed containers under normal storage and handling conditions. It is not compatible with strong oxidizing agents, strong acids, strong bases, and you must not take it with incompatible materials, light, temperatures above 100 °C, exposure to moist air or water. And also prevent it to broken down into hazardous decomposition products: nitrogen oxides, carbon monoxide, carbon dioxide.

Physical properties about 1-Methyl-2-pyrrolidinone are: (1)ACD/LogP: -0.637; (2)ACD/LogD (pH 5.5): -0.64; (3)ACD/LogD (pH 7.4): -0.64; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)ACD/KOC (pH 5.5): 10.73; (7)ACD/KOC (pH 7.4): 10.73; (8)#H bond acceptors: 2; (9)Index of Refraction: 1.47; (10)Molar Refractivity: 26.852 cm³; (11)Molar Volume: 96.268 cm³; (12)Polarizability: 10.645 10-24cm³; (13)Surface Tension: 33.7919998168945 dyne/cm; (14)Density: 1.03 g/cm³; (15)Flash Point: 86.111 °C; (16)Enthalpy of Vaporization: 43.821 kJ/mol; (17)Boiling Point: 201.999 °C at 760 mmHg; (18)Vapour Pressure: 0.29899999499321 mmHg at 25°C

Preparation of 1-Methyl-2-pyrrolidinone: 1-Methyl-2-pyrrolidinone (CAS NO.872-50-4) can be derived by the reaction of Γ-butyrolactone with amine .

Uses of 1-Methyl-2-pyrrolidinone: 1-Methyl-2-pyrrolidinone is used as intermediate for the synthesis of pharmaceuticals, agrochemicals, plasticizers, textile auxiliaries, stabilizers. It is also widely used in oil refining, pigments and cleaning, high polymer synthesis, chemicals, insulation materials, etc.

When you are using this chemical, please be cautious about it as the following:
1. In case of fire and/or explosion do not breathe fumes
2. In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
3. Avoid exposure - obtain special instruction before use

You can still convert the following datas into molecular structure:
(1)InChI=1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3;
(2)InChIKey=SECXISVLQFMRJM-UHFFFAOYSA-N;
(3)SmilesC1(=O)N(CCC1)C;