W292400 Aldrich

Propionic acid

≥99.5%, FCC, FG

Synonym: Acid C3, Propanoic acid, Propanyl acid

  • CAS Number 79-09-4

  • Linear Formula CH3CH2COOH

  • Molecular Weight 74.08

  •  FEMA Number 2924

  •  Beilstein Registry Number 506071

  •  EC Number 201-176-3

  •  Council of Europe no. 3

  •  MDL number MFCD00002756

  •  eCl@ss 39021305

  •  PubChem Substance ID 24901395

  •  Flavis number 8.003



Related Categories Alphabetical Listings, Certified Food Grade Products, Flavors and Fragrances, Follows IFRA Guidelines, Halal Certified Products,
biological source   synthetic
grade   FG
  follows IFRA guidelines
reg. compliance   EU Regulation 1223/2009
  FDA 21 CFR (178.1010)
  FDA 21 CFR (184.1081)
  EU Regulation 1334/2008 & 178/2002
vapor density   2.55 (vs air)
vapor pressure   2.4 mmHg ( 20 °C)
assay   ≥99.5%
autoignition temp.   955 °F
expl. lim.   12.1 %
refractive index   n20/D 1.386(lit.)
bp   141 °C(lit.)
  141 °C
mp   −24-−23 °C(lit.)
solubility   H2O: soluble
density   0.993 g/mL at 25 °C(lit.)
Documentation   see Safety & Documentation for available documents
Organoleptic   dairy; pungent; acidic
food allergen   no known allergens
fragrance allergen   no known allergens



1 kg in poly bottle

10, 25 kg in composite drum

General description

Propionic acid (PA) is a naturally occurring carboxylic acid, which in its pure state exists as a colorless corrosive liquid with an unpleasant odor. It is miscible in water. Industrially it is produced by hydrocarboxylation of ethylene in presence nickel carbonyl as a catalyst. PA has been found to reduce food intake, lower the fatty acids content in plasma and liver, might improve tissue insulin sensitivity and exerts immunosuppressive actions. Propionic acid is an excellent raw material as it is stable, cheap and safe and can even be used as a food additive.

Propionic acid is a volatile fatty acid (VFA) formed in the rumen of ruminants by bacterial fermentations.

Other Notes

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Introduction Defining "Food Grade" Understanding "Food Grade" Versus "Industrial Grade" Top Questions to Ask a Flavor & Fragrances Supplier The Sigma-Aldrich Approach
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Keywords: Food & Beverage, Food Safety, Solvents

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Dr. Luke Grocholl1, Rabbi Gershon Segal

1Dr. Luke Grocholl, Quality Assurance Supervisor, Sigma-Aldrich Flavors & Fragrances
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