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81910

Sigma-Aldrich

Propionic acid

puriss. p.a., ≥99.5% (GC)

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Synonym(s):
Acid C3, Propanoic acid, Propanyl acid
Linear Formula:
CH3CH2COOH
CAS Number:
Molecular Weight:
74.08
Beilstein:
506071
EC Number:
MDL number:
eCl@ss:
39021305
PubChem Substance ID:

vapor density

2.55 (vs air)

Quality Level

vapor pressure

2.4 mmHg ( 20 °C)

grade

puriss. p.a.

Assay

≥99.5% (GC)

form

liquid

autoignition temp.

955 °F

expl. lim.

12.1 %

refractive index

n20/D 1.386 (lit.)
n20/D 1.386

bp

141 °C (lit.)

mp

−24-−23 °C (lit.)

solubility

organic solvents: soluble(lit.)
water: soluble(lit.)

density

0.993 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg
Ba: ≤0.1 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.1 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.5 mg/kg
K: ≤0.5 mg/kg
Li: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Mo: ≤0.1 mg/kg
Na: ≤1 mg/kg
Ni: ≤0.1 mg/kg
Pb: ≤0.1 mg/kg
Sr: ≤0.1 mg/kg
Zn: ≤0.1 mg/kg

SMILES string

CCC(O)=O

InChI

1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)

InChI key

XBDQKXXYIPTUBI-UHFFFAOYSA-N

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1 of 4

This Item
P556194425W292400
Propionic acid puriss. p.a., ≥99.5% (GC)

Sigma-Aldrich

81910

Propionic acid

-
Propionic acid BioReagent, suitable for insect cell culture, ~99%

Sigma-Aldrich

P5561

Propionic acid

Essential+ Grade
Propionic acid analytical standard

Supelco

94425

Propionic acid

-
Propionic acid ≥99.5%, FCC, FG

Sigma-Aldrich

W292400

Propionic acid

-
vapor pressure

2.4 mmHg ( 20 °C)

vapor pressure

2.4 mmHg ( 20 °C)

vapor pressure

2.4 mmHg ( 20 °C)

vapor pressure

2.4 mmHg ( 20 °C)

grade

puriss. p.a.

grade

-

grade

-

grade

-

assay

≥99.5% (GC)

assay

~99%

assay

≥99.5% (GC)

assay

≥99.5%

form

liquid

form

-

form

-

form

-

refractive index

n20/D 1.386 (lit.)

refractive index

n20/D 1.386 (lit.)

refractive index

n20/D 1.386 (lit.)

refractive index

n20/D 1.386 (lit.)

General description

Propionic acid is a linear monocarboxylic acid. It affords esters on reaction with alcohols or alkenes. It can be synthesized by reacting ethane, carbon monoxide and water. It participates as a precursor in the preparation of smallest azolium homoenolate intermediate.

Application

Propionic acid may be used in the synthesis of cellulose propionate (cellulose ester).

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

129.2 °F - closed cup

Flash Point(C)

54 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Eagleson M.
Concise Encyclopedia Chemistry, 194-194 (1994)
Zhichao Jin et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 21(26), 9360-9363 (2015-05-28)
Direct β-carbon activation of propionic acid (C2H5CO2H) by carbene organocatalysis has been developed. This activation affords the smallest azolium homoenolate intermediate (without any substituent) as a 3-carbon nucleophile for enantioselective reactions. Propionic acid is an excellent raw material because it
Eagleson M.
Concise Encyclopedia Chemistry, 898-898 (1994)
Sa'ad H Al-Lahham et al.
Biochimica et biophysica acta, 1801(11), 1175-1183 (2010-08-10)
Undigested food is fermented in the colon by the microbiota and gives rise to various microbial metabolites. Short-chain fatty acids (SCFA), including acetic, propionic and butyric acid, are the principal metabolites produced. However, most of the literature focuses on butyrate
Weiqiang Chen et al.
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The recent global resurgence of arthritogenic alphaviruses, in particular chikungunya virus (CHIKV), highlights an urgent need for the development of therapeutic intervention strategies. While there has been significant progress in defining the pathophysiology of alphaviral disease, relatively little is known

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