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328634

NMP

anhydrous, 99.5%

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:
57648684
UNSPSC Code:
12352005
EC Number:
212-828-1
MDL number:
MFCD00003193
Beilstein/REAXYS Number:
106420
Assay:
99.5%
Grade:
anhydrous
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, anhydrous, 99.5%

grade

anhydrous

Quality Segment

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.)

SMILES string

CN1CCCC1=O

InChI

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

InChI key

SECXISVLQFMRJM-UHFFFAOYSA-N

General description

Our anhydrous solvents deliver exceptionally low water content, making them the ideal choice for moisture-sensitive laboratory applications. Packaged in the exclusive Sure/Seal™ septum bottle system, they are reliably protected against moisture ingress from first use to last drop. The innovative Sure/Seal™ closure combines an advanced plug-style liner with an airtight elastomer and crimp cap design to ensure consistent product integrity. Three unique liner materials provide optimal chemical compatibility across a broad range of solvents. Sure/Seal™ packaging is proven to maintain anhydrous conditions even after repeated punctures. With more than 70 products across all major solvent families, available in pack sizes from 100 mL to 2 L, the portfolio meets virtually every laboratory need. By choosing ready-to-use anhydrous solvents in Sure/Seal™ packaging, researchers eliminate the need for time-consuming and hazardous in-house solvent drying and distillation - saving time, reducing risk, and improving reproducibility.

Application

Anhydrous solvents in Sure/Seal™ packaging are essential wherever water contamination would compromise experimental results. They are widely used in moisture-sensitive applications such as organic synthesis - including Grignard reactions, organometallic chemistry, and catalysis - as well as in peptide, oligonucleotide, and pharmaceutical synthesis.

Packaging

View returnable container options.

Other Notes

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

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC
Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

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Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

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

Flash Point (°F)

195.8 °F - Pensky-Martens closed cup

Flash Point (°C)

91 °C - Pensky-Martens closed cup

PPE (personal protective equipment)

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Class I Designated Chemical Substances

prtr

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water soluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

328634-VAR: + 328634-8L: + 328634-6X1L: + 328634-4X2L: + 328634-12X100ML: + 328634-200L: + 328634-250ML: + 328634-BULK: + 328634-1L:4548173987934 + 6264940000: + 328634-2L:4548173987965 + 328634-18L-P1: + 328634-BCN: + 328634-PZ: + 328634-100ML:4548173987958 + 328634-50L-P2: + 328634-200L-P2: + 328634-20L: + 328634-18L:4548173987903 + 328634-PH-20L-P2: + 328634-900ML:

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