Butyric acid
ALDRICH/W222100 - ≥99%, FG
Synonym: Butanoic acid
CAS Number: 107-92-6
Empirical Formula (Hill Notation): C4H8O2
Molecular Weight: 88.11
EC Number: 203-532-3
MDL Number: MFCD00002814
Linear Formula: CH3CH2CH2COOH
Product Type: Chemical
| agency | follows IFRA guidelines |
| meets purity specifications of JECFA | |
| application(s) | flavors and fragrances |
| assay | ≥99% |
| autoignition temp. | 824 °F |
| biological source | synthetic |
| bp | 162 °C (lit.) |
| cation traces | As: ≤3 ppm |
| Cd: ≤1 ppm | |
| Hg: ≤1 ppm | |
| Pb: ≤10 ppm | |
| density | 0.964 g/mL at 25 °C (lit.) |
| documentation | see Safety & Documentation for available documents |
| expl. lim. | 10 % |
| food allergen | no known allergens |
| form | liquid |
| fragrance allergen | no known allergens |
| grade | FG |
| Fragrance grade | |
| Halal | |
| Kosher | |
| InChI | 1S/C4H8O2/c1-2-3-4(5)6/h2 |
| InChI key | FERIUCNNQQJTOY-UHFFFAOYSA |
| mp | −6-−3 °C (lit.) |
| organoleptic | cheese; buttery; fruity |
| pH | 2 (25 °C, 10 g/L) |
| 3 (20 °C, 10 g/L) | |
| Quality Level | 300 ![]() |
400 ![]() |
|
| refractive index | n |
| reg. compliance | EU Regulation 1223/2009 |
| EU Regulation 1334/2008 & 178/2002 | |
| FDA 21 CFR 117 | |
| FDA 21 CFR 182.60 | |
| SMILES string | CCCC(O)=O |
| vapor density | 3.04 (vs air) |
| vapor pressure | 0.43 mmHg ( 20 °C) |
| General description: | Butyric acid is a volatile fatty acid that can be used as a flavoring agent. It has fruity or cheesy flavor and is mainly found in dairy products. |
| Packaging: | 1 drum in poly drum |
| Packaging: | 1 kg in glass bottle |
| Packaging: | 10, 25 kg in composite drum |
| Symbol | ![]() GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302 - H314 |
| Precautionary statements | P270 - P280 - P301 + P312 - P301 + P330 + P331 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 22-34 |
| Safety Statements | 26-36-45 |
| RIDADR | UN 2820 8 / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | 161.6 °F - closed cup |
| Flash Point(C) | 72 °C - closed cup |
| Purity | ≥99% |
| bp | 162 °C (lit.) |
| mp | −6-−3 °C (lit.) |
| Density | 0.964 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| FEMA Number | 2221 |
| UNSPSC | 12164502 |



