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494496

Sigma-Aldrich

NMP

biotech. grade, ≥99.7%

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:
Molecular Weight:
99.13
Beilstein/REAXYS Number:
106420
EC Number:
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.07

product name

1-Methyl-2-pyrrolidinone, biotech. grade, ≥99.7%

grade

biotech. grade

Quality Level

vapor density

3.4 (vs air)

vapor pressure

0.29 mmHg ( 20 °C)
0.99 mmHg ( 40 °C)

assay

≥99.7%

form

liquid

autoignition temp.

518 °F

expl. lim.

9.5 %

impurities

≤0.005% water
≤0.01% free amines (CH3NH2)

color

APHA: ≤20

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.)
chloroform: miscible(lit.)
ethyl acetate: miscible(lit.)
water: miscible(lit.)

density

1.028 g/mL at 25 °C (lit.)

λ

H2O reference

UV absorption

λ: 285 nm Amax: 1.00
λ: 300 nm Amax: 0.50
λ: 325 nm Amax: 0.10
λ: 350-400 nm Amax: 0.01

application(s)

peptide synthesis

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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General description

N-Methyl-2-pyrrolidinone (N-methylpyrrolidone, NMP) is a polar cyclic organic solvent. A study on the impact of NMP on Saccharomyces cerevisiae revealed that it induced aneuploidy. Characteristic properties of NMP include low viscosity, excellent dissolving power and enhanced demulsifying property. It is a better alternative to phenol in selectively treating lube feedstock. The behavior of fullerene-C60 in NMP solution has been examined based on electronic absorption and photoluminescence spectral data. A solution of sodium borohydride (NaBH4) in NMP showed increased reactivity towards debromination of alkyl bromide. The enhanced selectivity of NMP-ethylene glycol solvent mixture for aromatic hydrocarbon extraction has been analyzed by gas chromatography.

pictograms

Health hazardExclamation mark

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

wgk_germany

WGK 1


Certificates of Analysis (COA)

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Evaluation of extraction properties of N-methylpyrrolidone and ethylene glycol mixtures by gas chromatography.
Wardencki W and Tameesh AHH.
Journal of Chemical Technology and Biotechnology, 31(1), 86-92 (1981)
NaBH4 in N-methylpyrrolidone: a safe alternative for hydride displacement reaction.
Torisawa Y, et al.
Bioorganic & Medicinal Chemistry Letters, 11(20), 2787-2789 (2001)
Aggregation of fullerene C60 in N-methylpyrrolidone.
Yevlampieva NP, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 209(2), 167-171 (2002)
N-methylpyrrolidone instead of phenol in treatment of lube feedstock.
Ivanov AV, et al.
Chemistry and Technology of Fuels and Oils, 36(5), 352-354 (2000)
Sanjairaj Vijayavenkataraman et al.
Artificial organs, 43(5), 515-523 (2018-09-20)
The incidence of peripheral nerve injuries is on the rise and the current gold standard for treatment of such injuries is nerve autografting. Given the severe limitations of nerve autografts which include donor site morbidity and limited supply, neural guide

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