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Key Documents

8.16146

Sigma-Aldrich

1-Methylpyrrolidine

for synthesis

Synonym(s):

1-Methylpyrrolidine

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About This Item

Empirical Formula (Hill Notation):
C5H11N
CAS Number:
120-94-5
Molecular Weight:
85.15
MDL number:
MFCD00003173
UNSPSC Code:
12352005
EC Index Number:
204-438-5
NACRES:
NA.22

vapor pressure

100 hPa ( 20 °C)

Quality Level

200

Assay

≥98.0% (GC)

form

liquid

autoignition temp.

170 °C (DIN 51794)

potency

280 mg/kg LD50, oral (Rat)

expl. lim.

1.1-9.1 % (v/v)

pH

11.3 (1 g/L in H2O)

bp

81 °C/1013 hPa

mp

<-80 °C

transition temp

flash point -3 °C

solubility

213 g/L

density

0.799 g/cm3 at 20 °C

storage temp.

2-30°C

SMILES string

N1(CCCC1)C

InChI

1S/C5H11N/c1-6-4-2-3-5-6/h2-5H2,1H3

InChI key

AVFZOVWCLRSYKC-UHFFFAOYSA-N

General description

1-Methylpyrrolidine is a heterocyclic organic compound that serves as a base and catalyst in organic reactions, such as aldol condensations, acylations, and cyclization reactions. Additionally, it is used as a solvent for certain polymerization processes due to its ability to dissolve both polar and non-polar substances. It exhibits strong nucleophilic properties because of the lone pair of electrons on its nitrogen atom, making it highly reactive towards electrophiles. This property enables its use in alkylation, acylation, and substitution reactions, facilitating the synthesis of diverse nitrogen-containing compounds.

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Identity (IR): passes test

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Oral - Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Flam. Liq. 2 - Skin Corr. 1A

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

-0.4 °F - closed cup

Flash Point(C)

-18 °C - closed cup

Certificates of Analysis (COA)

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