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69117

Sigma-Aldrich

1-Methyl-2-pyrrolidinone

purum, absolute, over molecular sieve (H2O ≤0.01%), ≥98.0% (GC)

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
Beilstein/REAXYS Number:
106420
EC Number:
212-828-1
MDL number:
MFCD00003193
UNSPSC Code:
12190000
PubChem Substance ID:
24885884

vapor density

3.4 (vs air)

vapor pressure

0.29 mmHg ( 20 °C)
0.99 mmHg ( 40 °C)

grade

absolute
purum

assay

≥98.0% (GC)

autoignition temp.

518 °F

quality

over molecular sieve (H2O ≤0.01%)

expl. lim.

9.5 %

refractive index

n20/D 1.47 (lit.)
n20/D 1.471

bp

202 °C (lit.)
81-82 °C/10 mmHg (lit.)

mp

−24 °C (lit.)

solubility

water: miscible(lit.)

density

1.028 g/mL at 25 °C (lit.)

SMILES string

CN1CCCC1=O

InChI

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

InChI key

SECXISVLQFMRJM-UHFFFAOYSA-N

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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_germany

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

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Certificates of Analysis (COA)

Lot/Batch Number
STBK7067
STBK7066
STBK7075
STBK7074
STBK7065

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1-Methyl-2-pyrrolidinone.
Trapencieris P and Pigza JA.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2009)
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)
Da-Won Jung et al.
Dalton transactions (Cambridge, England : 2003), 39(11), 2883-2887 (2010-03-05)
High quality MOF-177 crystals in the size range of 5-20 microm were successfully synthesized via a sonochemical route in a substantially reduced synthesis time (40 min) in the presence of low-cost NMP (1-methyl-2-pyrrolidone) as a solvent. Microwave heating in NMP
B A Jönsson et al.
Journal of chromatography. B, Biomedical sciences and applications, 694(2), 351-357 (1997-07-04)
A method for simultaneous determination of 5-hydroxy-N-methylpyrrolidone and 2-hydroxy-N-methylsuccinimide in urine is described. These compounds are metabolites of N-methyl-2-pyrrolidone, a powerful and widely used organic solvent. 5-Hydroxy-N-methylpyrrolidone and 2-hydroxy-N-methylsuccinimide were purified from urine by adsorption to a C8 solid-phase extraction
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