Skip to Content
Merck
CN

328634

NMP

anhydrous, 99.5%

Synonym(s):

1-Methyl-2-pyrrolidone, N-Methyl-2-pyrrolidone, NMP

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C5H9NO
CAS Number:
872-50-4
Molecular Weight:
99.13
MDL number:
MFCD00003193
NACRES:
NA.21
PubChem Substance ID:
57648684
UNSPSC Code:
12352005
EC Number:
212-828-1
Beilstein/REAXYS Number:
106420
Grade:
anhydrous
Assay:
99.5%
Bp:
202 °C (lit.)
81-82 °C/10 mmHg (lit.)
Vapor pressure:
0.29 mmHg ( 20 °C)
0.99 mmHg ( 40 °C)

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

1-Methyl-2-pyrrolidinone, anhydrous, 99.5%

InChI key

SECXISVLQFMRJM-UHFFFAOYSA-N

InChI

1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3

SMILES string

CN1CCCC1=O

grade

anhydrous

vapor density

3.4 (vs air)

vapor pressure

0.29 mmHg ( 20 °C)
0.99 mmHg ( 40 °C)

assay

99.5%

form

liquid

autoignition temp.

518 °F

expl. lim.

9.5 %

impurities

<0.005% water

refractive index

n20/D 1.47 (lit.)

pH

7.7-10.0 (20 °C, 100 g/L)

bp

202 °C (lit.)
81-82 °C/10 mmHg (lit.)

mp

−24 °C (lit.)

density

1.028 g/mL at 25 °C (lit.)

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Related Categories

Legal Information

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

Application

1-Methyl-2-pyrrolidinone may be used as a solvent in the following processes:
  • Preparation of 2-aryl and 2-alkyl benzothiazoles.
  • Ullmann coupling reaction of aryl halides and phenols to form Ullmann ethers in the presence of 2,2,6,6-tetramethylheptane-3,5-dione.
  • Stille cross-coupling reaction of aryl iodides with organostannanes catalyzed by Pd/C in the presence of copper iodide as cocatalyst.

Other Notes

Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

Packaging

View returnable container options.

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Repr. 1B - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 1

flash_point_f

195.8 °F - Pensky-Martens closed cup

flash_point_c

91 °C - Pensky-Martens closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SHBT3980
SHBT2618
SHBS9918
SHBS8770
SHBS6991

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Guohua Hu et al.
Nature communications, 8(1), 278-278 (2017-08-19)
Black phosphorus is a two-dimensional material of great interest, in part because of its high carrier mobility and thickness dependent direct bandgap. However, its instability under ambient conditions limits material deposition options for device fabrication. Here we show a black
Densities, viscosities, speeds of sound, and relative permittivities for water+ cyclic amides (2-pyrrolidinone, 1-methyl-2-pyrrolidinone, and 1-vinyl-2-pyrrolidinone) at different temperatures.
George J and Sastry NV.
Journal of Chemical and Engineering Data, 49(2), 235-242 (2004)
Stille couplings catalyzed by palladium-on-carbon with CuI as a cocatalyst: Synthesis of 2-(4'-acetylphenyl)thiophene
Liebeskind LS and Pe?a-Cabrera E
Organic Syntheses, 77, 135-135 (2000)
Effects of additional multiwall carbon nanotubes on impact behaviors of LiNi0.5Mn0.3Co0.2O2 battery electrodes.
Le AV, et al.
Journal of Applied Physics, 118(8), 085312-085312 (2015)
Preparation of 1-methoxy-2-(4-methoxyphenoxy)benzene
Buck E and Song ZJ
Organic Syntheses, 82, 69-69 (2005)
View All Related Papers

Protocols

Characterization and Performance Insights of Advanced Li-ion Cathode Materials

Analysis of high- to moderate-nickel cathode materials for lithium-ion batteries, focusing on performance, stability, and structural characteristics.

Streamlined Electrode Fabrication: A User-Friendly Guide

Guide for fabricating NMC811 cathode electrodes, detailing procedures for optimal performance in lithium-ion batteries.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service