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Merck
CN

443778

NMP

ACS reagent, ≥99.0%

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C5H9NO
CAS Number:
872-50-4
Molecular Weight:
99.13
NACRES:
NA.21
PubChem Substance ID:
329756501
UNSPSC Code:
12352005
EC Number:
212-828-1
MDL number:
MFCD00003193
Beilstein/REAXYS Number:
106420
Grade:
ACS reagent
Assay:
≥99.0%
Bp:
202 °C (lit.)
81-82 °C/10 mmHg (lit.)
Vapor pressure:
0.29 mmHg ( 20 °C)
0.99 mmHg ( 40 °C)

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Product Name

1-Methyl-2-pyrrolidinone, ACS reagent, ≥99.0%

InChI key

SECXISVLQFMRJM-UHFFFAOYSA-N

InChI

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

SMILES string

CN1CCCC1=O

grade

ACS reagent

vapor density

3.4 (vs air)

vapor pressure

0.29 mmHg ( 20 °C)
0.99 mmHg ( 40 °C)

assay

≥99.0%

form

liquid

autoignition temp.

518 °F

expl. lim.

9.5 %

dilution

(for analytical testing)

impurities

≤0.01% Free amines (as CH3NH2)
≤0.05% water

color

APHA: ≤50

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.)

solubility

acetone: miscible(lit.)
alcohol: miscible(lit.)
benzene: miscible(lit.)
chloroform: miscible(lit.)
ethyl acetate: miscible(lit.)
water: miscible(lit.)

density

1.028 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤1 ppm

Quality Level

200

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Application

1-Methyl-2-pyrrolidinone may be used as:
  • An alternative eluent to THF in the size exclusion chromatography (SEC) based resolution of coal-derived liquids.
  • Reaction medium to prepare 2-aryl and 2-alkyl benzothiazoles.
  • A solvent in the ultrasonic preparation of metal organic framework (MOF-177) crystals.
It may be used to synthesize single-phase chalcopyrite CuInSe2 nanocrystals and potassium 3-methyl-2-oxo-pyrrolidinenitronate.

General description

Our premium ACS solvents are ideal for routine chemical synthesis, drying, purification, and critical labware cleaning. They meet or exceed the rigorous standards of the American Chemical Society (ACS), ensuring high-quality results for your research needs.

Premium ACS Solvents: Our solvents meet or exceed the stringent standards set by the American Chemical Society, ensuring high quality and reliability for your laboratory applications.

Replicable and Publishable Results: Designed for consistency, our solvents deliver results that can be reliably reproduced, making them ideal for research that requires publication.

Versatile Applications: Suitable for routine chemical synthesis, drying, purification, and critical labware cleaning, our solvents cater to a wide range of research needs in the laboratory.

Packaging

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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

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Certificates of Analysis (COA)

Lot/Batch Number
SHBT4480
SHBT3925
SHBT3656
SHBT3254
SHBT2340

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A Green and Air Pressure Solution Synthesis of CuInSe2 Nanocrystals Using 1-methyl-2-Pyrrolidinone as Hot Solvent.
Wang W, et al.
Journal of the American Ceramic Society. American Ceramic Society, 94(8), 2571-2577 (2011)
Alkyl nitrate nitration of active methylene-compounds. 15. Nitration of 1-methyl-4-piperidone, 1-methyl-2-pyrrolidinone and 1,3-dimethyl-2-pyrrolidinone.
Feuer H, et al.
Journal of Heterocyclic Chemistry, 16(3), 481-485 (1979)
Aneuploidy induction in Saccharomyces cerevisiae by two solvent compounds, 1-methyl-2-pyrrolidinone and 2-pyrrolidinone.
Mayer VW, et al.
Environmental and Molecular Mutagenesis, 11(1), 31-40 (1988)
Solubility limitations in the determination of molecular mass distributions of coal liquefaction and hydrocracking products: 1-methyl-2-pyrrolidinone as mobile phase in size exclusion chromatography.
Herod AA, et al.
Energy and Fuels, 10(3), 743-750 (1996)
1-Methyl-2-pyrrolidinone: A well-adapted solvent in the benzothiazoles synthesis.
Brembilla A, et al.
Synthetic Communications, 20(21), 3379-3384 (1990)
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