Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

49322

Sigma-Aldrich

NMP

puriss. p.a., ≥99.0% (GC)

Synonym(s):

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

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C5H9NO
CAS Number:
Molecular Weight:
99.13
Beilstein:
106420
EC Number:
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
technique(s):
GC/GC: suitable
bp:
202 °C (lit.)
81-82 °C/10 mmHg (lit.)
vapor pressure:
0.29 mmHg ( 20 °C)
0.99 mmHg ( 40 °C)

Product Name

1-Methyl-2-pyrrolidinone, puriss. p.a., ≥99.0% (GC)

vapor density

3.4 (vs air)

Quality Level

vapor pressure

0.29 mmHg ( 20 °C)
0.99 mmHg ( 40 °C)

grade

puriss. p.a.

Assay

≥99.0% (GC)

form

liquid

autoignition temp.

518 °F

expl. lim.

9.5 %

technique(s)

GC/GC: suitable

impurities

≤0.1% water

refractive index

n20/D 1.47 (lit.)
n20/D 1.470

pH

7.7-8

bp

202 °C (lit.)
81-82 °C/10 mmHg (lit.)

mp

−24 °C (lit.)

density

1.028 g/mL at 25 °C (lit.)

cation traces

Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤20 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤1 mg/kg

SMILES string

CN1CCCC1=O

InChI

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

InChI key

SECXISVLQFMRJM-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Pictograms

Health hazardExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

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

Visit the Document Library

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