Skip to Content
Merck
CN
All Photos(1)

Documents

Safety Information

8.07041

Sigma-Aldrich

2-Pyrrolidone

for synthesis

Synonym(s):

2-Pyrrolidone, γ-Butyrolactam

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C4H7NO
CAS Number:
Molecular Weight:
85.10
MDL number:
UNSPSC Code:
12352115
EC Index Number:
210-483-1
NACRES:
NA.22

vapor pressure

0.04 hPa ( 20 °C)

Quality Level

Assay

≥99.0% (GC)

form

solid

autoignition temp.

395 °C

potency

>3200 mg/kg LD50, oral (Rat)

expl. lim.

1.8-16.6 % (v/v)

pH

9-11 (20 °C, 100 g/L in H2O)

mp

25.5 °C (External MSDS)

transition temp

flash point 138 °C

density

1.11 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C4H7NO/c6-4-2-1-3-5-4/h1-3H2,(H,5,6)

InChI key

HNJBEVLQSNELDL-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.110 - 1.112
Water (K. F.): ≤ 0.20 %
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

Pictograms

Exclamation markHealth hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Repr. 1B

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Regulatory Information

新产品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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