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P51559

Sigma-Aldrich

Propionyl chloride

98%

Synonym(s):

Chloro ethyl ketone, Ethyl chloroform, Propionic acid chloride, Prorionyl chloride

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About This Item

Linear Formula:
CH3CH2COCl
CAS Number:
Molecular Weight:
92.52
Beilstein:
385632
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

vapor density

3.2 (vs air)

Quality Level

Assay

98%

refractive index

n20/D 1.404 (lit.)

bp

77-79 °C (lit.)

mp

−94 °C

density

1.059 g/mL at 25 °C (lit.)

SMILES string

CCC(Cl)=O

InChI

1S/C3H5ClO/c1-2-3(4)5/h2H2,1H3

InChI key

RZWZRACFZGVKFM-UHFFFAOYSA-N

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General description

Propionyl chloride is an important chemical intermediate used to synthesize various propionic acid derivatives.

Application

Propionyl chloride can be used as an acylating agent:
  • To convert anisole to 4-methoxypropiophenone and 2-methoxynaphthalene to 1-propio-2-methoxynaphthalene in the presence of Indium(III) chloride (InCl3) impregnated mesoporous Si-MCM-41 catalyst.

It can also be used:
  • For chlorination in the presence of sulfuryl chloride and peroxides to form α-chloropropionyl chloride and β-chloropropionyl chloride.
  • In reaction with (hydroxypropyl)cellulose to form the propanoate ester, [(propionyloxy)propyl]cellulose.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B

Supplementary Hazards

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

42.8 °F - closed cup

Flash Point(C)

6 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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