4-Ethylpyridine Chemical Properties

Melting point:

-91 °C

Boiling point:

168 °C (lit.)

Density 

0.942 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.501(lit.)

Flash point:

118 °F

storage temp. 

Flammables area

solubility 

107g/l

form 

Liquid

pka

pK1:5.87(+1) (25°C)

color 

Clear colorless to yellow

PH

10 (100g/l, H2O, 20℃)

Water Solubility 

34 g/L

Merck 

14,3849

BRN 

106481

Dielectric constant

10.98

LogP

1.650

CAS DataBase Reference

536-75-4(CAS DataBase Reference)

NIST Chemistry Reference

4-(C2H5)-pyridine(536-75-4)

EPA Substance Registry System

4-Ethylpyridine (536-75-4)

Safety Information

Hazard Codes 

Xi,Xn

Risk Statements 

10-36/37/38-20/21/22

Safety Statements 

26-36-36/37/39-16

RIDADR 

UN 2924 3/PG 3

WGK Germany 

3

F 

8

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29333999

MSDS

• Language:English Provider:4-Ethylpyridine
• Language:English Provider:SigmaAldrich
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4-Ethylpyridine Usage And Synthesis

Chemical Properties

clear colorless to yellowish liquid

Uses

4-Ethyl pyridine is used as a monomer in polymer chemistry.

Uses

4-Ethylpyridine is used to study the influence of counter-anion concentration on analyte retention.

Synthesis Reference(s)

The Journal of Organic Chemistry, 22, p. 694, 1957 DOI: 10.1021/jo01357a607
Tetrahedron Letters, 26, p. 275, 1985 DOI: 10.1016/S0040-4039(01)80795-4

General Description

4-Ethylpyridine undergoes metal-ligand interaction with Zn-porphyrin which can be studied by mass spectrometry.

Contact allergens

4-Ethyl-pyridine is used as a monomer in polymer chemistry

Purification Methods

Dry 4-ethylpyridine with BaO, and fractionally distil it. Also purified by converting to the picrate, recrystalising and the free base is regenerated and distilled. [Beilstein 20/6 V 10.]

4-Ethylpyridine(536-75-4)Related Product Information

• Chromium picolinate
• Ethyl maltol
• Ethyl cellulose
• Hydroxyethyl Cellulose
• Sulfasalazine
• Hydroxyethyl starch
• 4-TERT-BUTYLPYRIDINE
• 4-Benzylpyridine
• 4-Pyridylacetonitrile hydrochloride
• 4-Pyridineethanesulfonic acid
• 4-(4-CHLOROBENZOYL)PYRIDINE
• 4-Acetylpyridine
• 4-(4-Nitrobenzyl)pyridine
• Diphenyl(4-pyridyl)methanol
• 4-Benzoylpyridine
• 5-Ethylpyridine,3-ETHYLPYRIDINE,3-ETHYLPYRIDINE 98+%
• 4-Pyridineacetic acid hydrochloride
• 2-ETHYLPYRIDINE 98+%,2-Ethylpyridine,~99%,ALPHA-ETHYLPYRIDINE