Propionic acid
ALDRICH/W292400 - ≥99.5%, FCC, FG
Synonym: Acid C3; Propanoic acid; Propanyl acid
CAS Number: 79-09-4
Empirical Formula (Hill Notation): C3H6O2
Molecular Weight: 74.08
EC Number: 201-176-3
MDL Number: MFCD00002756
Linear Formula: CH3CH2COOH
Product Type: Chemical
| agency | follows IFRA guidelines |
| meets purity specifications of JECFA | |
| application(s) | flavors and fragrances |
| assay | ≥99.5% |
| autoignition temp. | 955 °F |
| biological source | synthetic |
| bp | 141 °C (lit.) |
| density | 0.993 g/mL at 25 °C (lit.) |
| documentation | see Safety & Documentation for available documents |
| expl. lim. | 12.1 % |
| food allergen | no known allergens |
| fragrance allergen | no known allergens |
| grade | FG |
| Fragrance grade | |
| Halal | |
| Kosher | |
| InChI | 1S/C3H6O2/c1-2-3(4)5/h2H2 |
| InChI key | XBDQKXXYIPTUBI-UHFFFAOYSA |
| mp | −24-−23 °C (lit.) |
| organoleptic | dairy; pungent; acidic |
| Quality Level | 400  |
| refractive index | n |
| reg. compliance | EU Regulation 1223/2009 |
| EU Regulation 1334/2008 & 178/2002 | |
| FCC | |
| FDA 21 CFR 178.1010 | |
| FDA 21 CFR 184.1081 | |
| SMILES string | CCC(O)=O |
| solubility | H2O: soluble |
| vapor density | 2.55 (vs air) |
| vapor pressure | 2.4 mmHg ( 20 °C) |
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