Butyl Acetate CAS#123-86-4 Products Description
Butyl acetate is a carboxylic acid ester widely used as a synthetic flavoring and fragrance ingredient. It is a clear, colorless liquid with a pronounced fruity odor. It is miscible with ethanol and ether, readily dissolves in most organic solvents, and exhibits only limited solubility in water, at approximately 0.05 g (depending on the specified measurement conditions).
Its vapor may produce mild anesthetic effects, and its permissible concentration in air is stated as 0.2 g/L. Butyl acetate has a strong fruity aroma that, when diluted, develops pleasant pineapple- and banana-like notes, although the fragrance is relatively short-lived.
This compound occurs naturally in various fruits, vegetables, and berries. It is primarily used in food flavor formulations and, to a lesser extent, in household products and personal care fragrances.
Butyl acetate exists in four isomeric forms: n-butyl acetate, isobutyl acetate, sec-butyl acetate, and tert-butyl acetate. All four forms can occur naturally, with n-butyl acetate and isobutyl acetate being the most commercially important.
n-Butyl acetate is a clear, colorless liquid with a characteristic fruity odor. It has an initially sharp taste followed by a sweet note, is highly volatile, and is classified as a flammable liquid. Natural sources include apples, bananas, cherries, grapes, peaches, plums, pears, tomatoes, and cocoa beans.
Butyl Acetate CAS#123-86-4 Chemical Properties
| Melting point | -78 °C (lit.) |
| Boiling point | 124-126 °C (lit.) |
| density | 0.88 g/mL at 25 °C (lit.) |
| vapor density | 4 (vs air) |
| vapor pressure | 15 mm Hg ( 25 °C) |
| refractive index | n20/D 1.394(lit.) |
| FEMA | 2174 | BUTYL ACETATE |
| Fp | 74 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | 5.3g/l |
| form | Liquid |
| color | ≤10(APHA) |
| Specific Gravity | 0.883 (20/20℃) |
| Odor | Characteristic; agreeable fruity (in low concentrations); non residual. |
| PH | 6.2 (5.3g/l, H2O, 20℃)(External MSDS) |
| explosive limit | 1.4-7.5%(V) |
| Odor Threshold | 0.016ppm |
| Odor Type | ethereal |
| Water Solubility | 0.7 g/100 mL (20 ºC) |
| FreezingPoint | -77.9℃ |
| λmax | λ: 254 nm Amax: 1.0 |
| λ: 260 nm Amax: 0.20 | |
| λ: 275 nm Amax: 0.04 | |
| λ: 300 nm Amax: 0.02 | |
| λ: 320-400 nm Amax: 0.01 | |
| JECFA Number | 127 |
| Merck | 141535 |
| BRN | 1741921 |
| Henry's Law Constant | 5.79 at 37 °C (static headspace-GC, van Ruth et al., 2001) |
| Exposure limits | TLV-TWA 150 ppm (～710 mg/m3) (ACGIH, MSHA, and OSHA); TLV-STEL 200 ppm (～950 mg/m3); IDLH 10,000 ppm (NIOSH). |
| Dielectric constant | 5.0（20℃） |
| Stability: | Stable. Flammable. Incompatible with strong oxidizing agents, strong acids, strong bases. |
| InChIKey | DKPFZGUDAPQIHT-UHFFFAOYSA-N |
| LogP | 1.82-2.3 at 25℃ |
| CAS DataBase Reference | 123-86-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Acetic acid, butyl ester(123-86-4) |
| EPA Substance Registry System | n-Butyl acetate (123-86-4) |
Butyl Acetate CAS#123-86-4 Safety Information
| Risk Statements | 10-66-67-R67-R66-R10 |
| Safety Statements | 25-S25 |
| RIDADR | UN 1123 3/PG 3 |
| OEB | A |
| OEL | TWA: 150 ppm (710 mg/m3), STEL: 200 ppm (950 mg/m3) |
| WGK Germany | 1 |
| RTECS | AF7350000 |
| Autoignition Temperature | 790 °F |
| TSCA | Yes |
| HS Code | 2915 33 00 |
| HazardClass | 3 |
| PackingGroup | III |
| Hazardous Substances Data | 123-86-4(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 14.13 g/kg (Smyth) |
| IDLA | 1,700 ppm |
Butyl Acetate CAS#123-86-4 Product Application
Butyl acetate, commonly referred to as n-butyl acetate, is widely used as a flavoring ingredient. It is a transparent, colorless liquid with a distinctive, strong fruity aroma. Although it has limited solubility in water, it is readily miscible with alcohol, ether, and propylene glycol, making it suitable for a variety of flavoring formulations and other industrial applications.
