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Key Documents

8.45055

Sigma-Aldrich

Pyrrole

Synonym(s):

Pyrrole

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About This Item

Empirical Formula (Hill Notation):
C4H5N
CAS Number:
Molecular Weight:
67.09
MDL number:
UNSPSC Code:
12352005

vapor pressure

8.7 hPa ( 20 °C)

Quality Level

assay

≥97.0% (GC)

form

liquid

autoignition temp.

550 °C

potency

137 mg/kg LD50, oral (Rat)

expl. lim.

3.10-14.8 % (v/v)

pH

>6 (20 °C, 10 g/L in H2O)

bp

130-131 °C/1013 hPa

mp

-24 °C

transition temp

flash point 39 °C

density

0.97 g/cm3 at 20 °C

storage temp.

2-8°C

InChI

1S/C4H5N/c1-2-4-5-3-1/h1-5H

InChI key

KAESVJOAVNADME-UHFFFAOYSA-N

Analysis Note

Colour (visual): yellow
Appearance of substance (visual): liquid
Assay (GC, area%): ≥ 97.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.967 - 0.971
Identity (IR): passes test

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