2555-04-6

Basic information

• Product Name: 1,4-Dimethyl-2-pyrrolidone
• Synonyms: 1,4-Dimethyl-2-pyrrolidone;1,4-DIMETHYLPYRROLIDIN-2-ONE;1,4-Dimethylpyrrolid-2-one;2-Pyrrolidinone, 1,4-diMethyl-;(4S)-1,4-dimethylpyrrolidin-2-one
• CAS NO: 2555-04-6
• Molecular Formula: C₆H₁₁NO
• Molecular Weight: 113.16
• Product Categories: Pyrrolidines
• Mol File: 2555-04-6.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 197.6°Cat760mmHg
• Flash Point: 85.2°C
• Appearance: /
• Density: 0.973g/cm³
• Vapor Pressure: 0.376mmHg at 25°C
• Refractive Index: 1.455
• PKA: -0.37±0.40(Predicted)
• CAS DataBase Reference: 1,4-Dimethyl-2-pyrrolidone(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Dimethyl-2-pyrrolidone(2555-04-6)
• EPA Substance Registry System: 1,4-Dimethyl-2-pyrrolidone(2555-04-6)

Safety Data

• Hazardous Substances Data: 2555-04-6(Hazardous Substances Data)

Usage

Description

1,4-Dimethyl-2-pyrrolidone, also known as 1,4-DMP or N-Methyl-2-pyrrolidone (NMP), is a colorless, low viscosity liquid with a slight amine-like odor. It is a polar aprotic solvent that is widely used in various industries due to its unique properties, such as high boiling point, low vapor pressure, and excellent solubility for a wide range of compounds.

Uses

Used in Chemical Synthesis:
1,4-Dimethyl-2-pyrrolidone is used as a solvent in the chemical synthesis of various compounds, including pharmaceuticals, agrochemicals, and specialty chemicals. Its ability to dissolve a wide range of substances makes it an ideal choice for this application.
Used in Paints and Coatings:
1,4-Dimethyl-2-pyrrolidone is used as a coalescing agent in the paint and coatings industry. It helps in the formation of fine particles and fine particles-dispersed solutions, which contribute to the improved performance and durability of the final product.
Used in Electronics:
In the electronics industry, 1,4-Dimethyl-2-pyrrolidone is used as a cleaning agent for the removal of flux residues and other contaminants from printed circuit boards (PCBs) during the manufacturing process.
Used in Adhesives:
1,4-Dimethyl-2-pyrrolidone is used as a solvent in the formulation of various adhesives, particularly those used in the automotive and construction industries. Its ability to dissolve a wide range of polymers and resins makes it a valuable component in adhesive formulations.
Used in Polymer Processing:
1,4-Dimethyl-2-pyrrolidone is used as a processing aid in the production of various polymers, such as polyamides, polyurethanes, and polyvinyl chloride (PVC). It helps to improve the flow properties of the polymers, making them easier to process and manufacture.
Used in Battery Technology:
1,4-Dimethyl-2-pyrrolidone is used in the development of advanced battery technologies, particularly in the production of lithium-ion batteries. It serves as a solvent for the electrolyte solutions, which are crucial for the performance and safety of the batteries.

InChI:InChI=1/C6H11NO/c1-5-3-6(8)7(2)4-5/h5H,3-4H2,1-2H3

Upstream product

• 42346-68-9 1-Methyl-5-oxo-3-pyrrolidinecarboxylic Acid 
• 97-65-4 2-methylenesuccinic acid 
• 74-89-5 methylamine 

Relevant articles and documents

MIXTURES OF ITACONIC ACID OR ITACONIC ACID DERIVATIVES AND PRIMARY AMINES FOR PRODUCING 1,3- AND 1,4-ALKYL METHYL PYRROLIDONES

The present invention relates to a mixture comprising itaconic acid or an itaconic acid derivative and a primary amine of the formula (I) [in-line-formulae]R—NH2??(I)[/in-line-formulae] where the molar ratio of primary amine to itaconic acid or the itaconic acid derivative is in the range from 0.5:1 to 20:1, wherein the mixture comprises 50 mole percent or less of 4-carboxypyrrolidones of the formula (II), derivatives of the 4-carboxypyrrolidones of the formula (II) and 4-carbamidopyrrolidones of the formula (III) based on the itaconic acid used or the itaconic acid derivative used and in which R is a linear or branched saturated aliphatic radical having 1 to 24 carbon atoms or a saturated cycloaliphatic radical having 3 to 24 carbon atoms. The invention further provides for the use of the inventive mixtures for preparing 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones, and also a process for preparing 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones. In addition, the present invention relates to mixtures comprising 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones and 1,3-alkylmethylpyrrolidines, where the proportion of 1,3-alkylmethylpyrrolidines is in the range from 10 to 10 000 ppm, and to mixtures comprising 1,3-alkylmethylpyrrolidone and 1,4-alkylmethylpyrrolidone, wherein the molar ratio of 1,3-alkylmethylpyrrolidone to 1,4-alkylmethylpyrrolidone is in the range from 1:1 to 10:1.