Pentanoic acid
Description
Pentanoic acid (CAS 109-52-4), also known as valeric acid, is a five-carbon saturated carboxylic acid used across food, fragrance, and pharmaceutical manufacturing. It functions primarily as a flavoring agent and pH regulator.
This versatile compound serves as a critical chemical intermediate in the synthesis of esters and active compounds. In food and beverage production, it contributes characteristic dairy and fruity top notes to flavors.
The substance is listed under FEMA 3101 for use in approved applications. Ester derivatives, particularly pentyl acetate and related compounds, are produced using this acid as a key synthesis intermediate.
Pharmaceutical manufacturers use it as a precursor in the synthesis of valproic acid and other active pharmaceutical ingredients. In industrial settings, it functions as a catalyst precursor and pH-buffering agent.
It is particularly useful in organic synthesis processes where controlled acidity is required. The product is supplied as a colorless liquid in bulk quantities, intermediate IBCs, and smaller drum formats.
These packaging options are suited to laboratory or pilot-scale procurement. Food-grade material conforming to FCC specifications is available for flavor and food additive applications.
Technical-grade supply is standard for industrial synthesis and catalyst preparation end uses. Our logistics network ensures reliable delivery of high-purity chemical components for diverse manufacturing requirements.
Physical Properties
| Melting Point | -34.5 °C |
| Boiling Point | 186-187 °C |
| Density | 0.939 g/cm³ @ Temp: 20 °C |
| Flash Point | 192 °F |
| Appearance | Colorless liquid; penetrating odor and taste. Soluble in water, alcohol and ether. Undergoes reactions typical of normal monobasic organic acids. Combustible. |
| Color | Clear colorless to pale yellow |
| Odor | at 1.00 % in propylene glycol. sickening putrid acidic sweaty rancid |
| Form | Liquid |
| Water Solubility | 40 g/L (20 ºC) |
| Vapor Pressure | 0.15 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.408(lit.) |
| pH | 2.7 (40g/l, H2O, 20℃) |
| Log P | 1.8 at 25℃ |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 29156090 |
| UN Number | 3265 |
| ADR Class | 8 |
| Packing Group | III |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| WGK (Germany) | 1 |
Documentation
Other Names
Valeric acid
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