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  • 820832
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8.20832

Sigma-Aldrich

1-Methylpyrrole

for synthesis

Synonym(s):
1-Methylpyrrole, N-Methylpyrrole
Empirical Formula (Hill Notation):
C5H7N
CAS Number:
Molecular Weight:
81.12
MDL number:
EC Index Number:
202-513-7

Quality Level

Assay

≥99.0% (GC)

form

liquid

autoignition temp.

400 °C

potency

1400 mg/kg LD50, oral (Rat)
>400 mg/kg LD50, skin (Rabbit)

expl. lim.

1.4-8.5 % (v/v)

pH

10.4 (10 °C, 10 g/L in H2O)

bp

111-113 °C/1013 hPa

mp

-57 °C

transition temp

flash point 16 °C

solubility

13 g/L

density

0.91 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C5H7N/c1-6-4-2-3-5-6/h2-5H,1H3

InChI key

OXHNLMTVIGZXSG-UHFFFAOYSA-N

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This Item
W31841814372028.16146
1-Methylpyrrole for synthesis

Sigma-Aldrich

8.20832

1-Methylpyrrole

Methylpyrrolidone United States Pharmacopeia (USP) Reference Standard

USP

1437202

Methylpyrrolidone

1-Methylpyrrolidine for synthesis

Sigma-Aldrich

8.16146

1-Methylpyrrolidine

assay

≥99.0% (GC)

assay

≥98%

assay

-

assay

≥98.0% (GC)

bp

111-113 °C/1013 hPa

bp

200-202 °C (lit.)

bp

202 °C (lit.), 81-82 °C/10 mmHg (lit.)

bp

81 °C/1013 hPa

mp

-57 °C

mp

-

mp

−24 °C (lit.)

mp

<-80 °C

density

0.91 g/cm3 at 20 °C

density

1.04 g/mL at 25 °C (lit.)

density

1.028 g/mL at 25 °C (lit.)

density

0.799 g/cm3 at 20 °C

form

liquid

form

-

form

-

form

liquid

autoignition temp.

400 °C

autoignition temp.

-

autoignition temp.

518 °F

autoignition temp.

170 °C (DIN 51794)

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.909 - 0.910
Identity (IR): passes test

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Flam. Liq. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

60.8 °F

Flash Point(C)

16 °C

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