Overview
Isoamyl butyrate ( CAS 106-27-4 ), also known as isopentyl butyrate, is a synthetic ester used commercially as a flavoring and fragrance ingredient. It delivers a characteristic banana, pear, and tropical fruit profile.
This profile makes it a go-to choice for flavor houses and fragrance compounders. FEMA 2060 status confirms its recognized safety standing for use in food applications across the global market.
In food and beverage manufacturing, it is used to create or reinforce banana, pear, and tropical fruit notes in confectionery, beverages, baked goods, and dairy products. It is highly versatile for these uses.
Fragrance formulators incorporate it into personal care products, including shampoos, body lotions, and soaps, where fruity top notes are required. It provides a consistent and pleasant aromatic experience.
It also appears in functional flavor blends where a low-cost, stable ester is needed to anchor volatile top-note compositions. This stability is essential for maintaining the integrity of complex flavor profiles.
Confectionery manufacturers sourcing banana-flavored coatings and fillings frequently specify it as a primary flavoring agent. Its reliability makes it a staple in large-scale industrial food production.
Isoamyl butyrate is supplied as a clear liquid, typically in drum and IBC quantities for industrial buyers. It is available in food-grade and flavor-grade specifications aligned with FEMA and FCC standards.
Technical-grade material is also available for fragrance and non-food applications where food compliance is not required. This ensures a range of options for different manufacturing and regulatory needs.
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Physical Properties
| Melting Point | -73.2 °C |
| Boiling Point | 180 °C @ Press: 760 Torr |
| Density | 0.83276 g/cm³ @ Temp: 70.00 °C |
| Flash Point | 136 °F |
| Appearance | CLEAR COLOURLESS LIQUID |
| Color | Colorless to Almost colorless |
| Odor | at 100.00 %. fruity green apricot pear banana |
| Form | neat |
| Water Solubility | 184.7mg/L at 20℃ |
| Vapor Pressure | 1.1 hPa (20 °C) |
| Refractive Index | n 20/D 1.411(lit.) |
| Log P | 3.99 at 22.4℃ |
Safety & Handling
Warning GHS02 Hazard Statements H226 Flammable liquid and vapor H412 Harmful to aquatic life with long lasting effects Precautionary Statements P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P501 Dispose of contents/container in accordance with local regulations. P370+P378 Use … for extinction. P403+P235 Store in a well-ventilated place. Keep cool. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
Trade & Regulatory
| HS Code | 29156019 |
| UN Number | 3272 |
| ADR Class | 3 |
| Packing Group | III |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 106-27-4
- EC Number
- 203-380-8
- Mol. Weight
- 158.24
- HS Code
- 29156019
- Category
- Oils, Fats & Waxes