Propionic acid

C3H6O2CAS 79-09-474.08 g/mol

Open in Covalent MOL file
OOH
Carboxylic acid

Properties

Molecular formula
C3H6O2
Molar mass
74.08 g/mol
Exact mass
74.0368 Da
Density
0.993 g/mL (at 20 °C)
Melting point
−20.7 °C
Boiling point
141.1 °C
pKa
4.88
Flash point
52.2 °C (closed cup)
Water solubility
miscible (25 °C)
logP
0.48Crippen estimate
Polar surface area
37.3 Ų
H-bond donors / acceptors
1 / 1
Rotatable bonds
1

Hazards

Danger
Corrosive (GHS05)

Harmonised EU classification (CLP Annex VI, index 607-089-00-0), via PubChem.

Precautionary statements

P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, P501

Identifiers

CAS number
79-09-4
SMILES
CCC(=O)O
InChIKey
XBDQKXXYIPTUBI-UHFFFAOYSA-N
InChI
InChI=1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)

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Names and synonyms

15 names · show all
  • Propanoic acid
  • Carboxyethane
  • Ethylformic acid
  • Metacetonic acid
  • Methylacetic acid
  • Prozoin
  • Pseudoacetic acid
  • Ethanecarboxylic acid
  • Luprosil
  • MonoProp
  • Antischim B
  • Propkorn
  • Propcorn
  • Adofeed
  • Toxi-check

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 79-09-4. Each row opens the sheet with its composition and PDF.

Open in the SDS library

Work with Propionic acid

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Boiling point under vacuumAt any pressure, from its normal boiling point Isotope patternExact mass and the mass spectrum pattern

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Sodium propionate137-40-6Salt Calcium propanoate4075-81-4Salt Potassium propanoate327-62-8Salt Ammonium propionate17496-08-1Salt Zinc propionate557-28-8Salt Imidocarb dipropionate55750-06-6Salt

Similar compounds

Propanoic acid, zirconium salt (1:?)84057-80-783 % similar Butyric acid107-92-652 % similar Succinic acid110-15-650 % similar Malonic acid141-82-250 % similar Valeric acid109-52-448 % similar Caproic acid142-62-146 % similar trans-3-Hexenoic acid1577-18-046 % similar Ethoxyacetic acid627-03-246 % similar

Tanimoto similarity of circular fingerprints over the whole catalogue.

All similar compounds

Same formula

Ethyl formate109-94-4 Hydroxyacetone116-09-6 Reuterin2134-29-4 Glycidol556-52-5 (+)-Glycidol57044-25-4 (-)-Glycidol60456-23-7 Dioxolane646-06-0 Oxetan-3-ol7748-36-9

Elsewhere

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