N-Methyl-2-pyrrolidone

N-Methyl-2-pyrrolidone
Names
	Preferred IUPAC name 1-Methylpyrrolidin-2-one
	Other names 1-Methyl-2-pyrrolidone; N-Methylpyrrolidone; N-Methylpyrrolidinone; Pharmasolve
Identifiers
CAS Number	872-50-4 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:7307 ;
ChEMBL	ChEMBL12543 ;
ChemSpider	12814 ;
ECHA InfoCard	100.011.662
KEGG	C11118 ;
PubChem CID	13387;
UNII	JR9CE63FPM ;
CompTox Dashboard (EPA)	DTXSID6020856 ;
	InChI InChI=1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3 Key: SECXISVLQFMRJM-UHFFFAOYSA-N ; InChI=1/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3 Key: SECXISVLQFMRJM-UHFFFAOYAL;
	SMILES CN1CCCC1=O;
Properties
Chemical formula	C5H9NO
Molar mass	99.133 g·mol−1
Density	1.028 g/cm3
Melting point	−24 °C (−11 °F; 249 K)
Boiling point	202 to 204 °C (396 to 399 °F; 475 to 477 K)
Solubility in water	Soluble
Solubility in Ethanol, acetone, diethylether, ethyl acetate, chloroform, benzene	Soluble
log P	−0.40
Hazards
NFPA 704 (fire diamond)	2 2 1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

N-Methyl-2-pyrrolidone (NMP) is an organic compound consisting of a 5-membered lactam. It is a colorless liquid, although impure samples can appear yellow. It is miscible with water and with most common organic solvents. It also belongs to the class of dipolar aprotic solvents such as dimethylformamide and dimethyl sulfoxide. It is used in the petrochemical, polymer and battery industries as a solvent, exploiting its nonvolatility and ability to dissolve diverse materials (including polyvinylidene difluoride, PVDF).

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