Basic information Description References Safety Related Supplier
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Butyl butyrate

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Butyl butyrate Basic information
Butyl butyrate Chemical Properties
  • Melting point:-92 °C
  • Boiling point:164-165 °C (lit.)
  • Density 0.869 g/mL at 25 °C (lit.)
  • refractive index n20/D 1.406(lit.)
  • Flash point:121 °F
  • storage temp. Flammables area
  • solubility 0.50g/l
  • form Liquid
  • color Clear colorless to pale yellow
  • explosive limit1%(V)
  • Odor Threshold0.0048ppm
  • Water Solubility Soluble in water. (1 g/L).
  • Merck 14,1556
  • JECFA Number151
  • BRN 1747101
  • CAS DataBase Reference109-21-7(CAS DataBase Reference)
  • NIST Chemistry ReferenceButyl butyrate(109-21-7)
  • EPA Substance Registry SystemButyl butyrate (109-21-7)
Safety Information
  • Risk Statements 10
  • Safety Statements 2-24/25
  • RIDADR UN 3272 3/PG 3
  • WGK Germany 2
  • RTECS ES8120000
  • TSCA Yes
  • HazardClass 3
  • PackingGroup III
  • HS Code 29156000
Butyl butyrate Usage And Synthesis
  • DescriptionButyl butyrate is a kind of ester formed through the condensation of butyric acid and n-butanol. It has a pleasant flavor, and thus being used in the flavor industry to generate a sweet fruity flavor of pineapple-like. It occurs naturally in many kinds of fruits including apple, banana, berries, pear, plum, and strawberry. It is also found in alcoholic beverages. However, it should be noted that it is a marine pollutant, posing a threat to the marine environment. It may also penetrate into soil, contaminating groundwater and other nearby waterways.
  • References
  • Chemical PropertiesButyl Butyrate is a liquid with a sweet, fruity odor. It is a volatile constituent of many fruits and honey and is used in fruit flavor compositions.
  • Chemical PropertiesButyl butyrate has a fruity (pear–pineapple-like) odor.
  • OccurrenceReported found in fresh apple, apple juice, banana, orange juice, orange peel oil, melon, strawberry, Passiflora mollisima, soybean, honey and blue cheese.
  • UsesFlavoring.
  • DefinitionChEBI: A butanoate ester of butan-1-ol.
  • PreparationBy passing vapors of n-butyl alcohol over MnO2 or ZnO at 400°C, also by passing vapors of n-butyl alcohol over CuO-VO at 180 to 200°C.
  • Aroma threshold valuesDetection: 87 to 1000 ppb
  • Taste threshold valuesTaste characteristics at 40 ppm: sweet, fresh, fruity, slightly fatty.
  • Synthesis Reference(s)Journal of the American Chemical Society, 69, p. 2605, 1947 DOI: 10.1021/ja01203a011
    Organic Syntheses, Coll. Vol. 1, p. 138, 1941
    Tetrahedron Letters, 22, p. 5327, 1981 DOI: 10.1016/S0040-4039(01)92493-1
  • General DescriptionA colorless liquid. Insoluble in water. A marine pollutant. Poses a threat to the aquatic environment. Immediate steps should be taken to prevent spread to the environment. May penetrate soils and contaminate groundwater and nearby waterways. Mildly irritates the eyes and skin.
  • Air & Water ReactionsInsoluble in water.
  • Reactivity ProfileButyl butyrate reacts with acids to liberate heat along with butyl alcohol and butyric acid. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by interaction with caustic solutions. Flammable hydrogen is generated by mixing with alkali metals and hydrides. May attack some forms of plastics [USCG, 1999].
  • HazardIrritant and narcotic. Moderate fire risk.
  • Health HazardInhalation or ingestion causes headache, dizziness, nausea, vomiting, and narcosis. Contact with liquid irritates eyes.
  • Fire HazardSome may burn but none ignite readily. Containers may explode when heated. Some may be transported hot.
  • Safety ProfileModerately toxic via intraperitoneal route. Mildly toxic by ingestion. Moderately irritating to eyes, sh, and mucous membranes by inhalation. Narcotic in hgh concentrations. Flammable liquid. To fight fire, use alcohol foam, foam, CO2, dry chemical. Incompatible with oxidizing materials. When heated to decomposition it emits acrid and irritating fumes.
Butyl butyrate Preparation Products And Raw materials
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