Amyl acetate

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Amyl acetate
Wireframe model of amyl acetate
IUPAC name
Pentyl acetate
Other names
Acetic acid n-amyl ester

Acetic acid pentyl ester
n-Amyl acetate
Amyl ethanoate
Pear oil
Pentyl ethanoate
Amyl acetic ester[1]
Amyl acetic ether[1]

1-Pentanol acetate[1]
628-63-7 YesY
ChEBI CHEBI:167899 N
ChemSpider 11843 YesY
EC number 211-047-3
Jmol-3D images Image
MeSH Amyl+acetate
PubChem 12348
RTECS number AJ1925000
UN number UN 1104
Molar mass 130.19 g/mol
Appearance Colorless liquid
Odor Banana-like
Density 0.876 g/cm3
Melting point −71 °C (−96 °F; 202 K)
Boiling point 149 °C (300 °F; 422 K)
Solubility in other solvents water: 10 g/l (20 °C)
Vapor pressure 4 mmHg[1]
MSDS External MSDS
Main hazards Flammable
NFPA 704
Flammability code 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g., gasoline) Health code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentine Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Flash point −70.6 °C (−95.1 °F; 202.6 K)
Explosive limits 1.1%-7.5%[1]
7400 mg/kg, oral (rabbit)
6500 mg/kg, oral (rat)[2]
US health exposure limits (NIOSH):
100 ppm, 8hr TWA (525 mg/m3)[1]
TWA 100 ppm (525 mg/m3)[1]
1000 ppm[1]
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N verify (what isYesY/N?)
Infobox references

Amyl acetate (pentyl acetate) is an organic compound and an ester with the chemical formula CH3COO[CH2]4CH3 and the molecular weight 130.19 g/mol. It has a scent similar to bananas[3] and apples.[4] The compound is the condensation product of acetic acid and 1-pentanol. However, esters formed from other pentanol isomers (amyl alcohols), or mixtures of pentanols, are often referred to as amyl acetate.

It is used as a flavoring agent, as a paint and lacquer solvent, and in the preparation of penicillin.

See also[edit]


  1. ^ a b c d e f g h "NIOSH Pocket Guide to Chemical Hazards #0031". National Institute for Occupational Safety and Health (NIOSH). 
  2. ^ "n-Amyl acetate". National Institute for Occupational Safety and Health (NIOSH). 4 December 2014. Retrieved 16 February 2015. 
  3. ^ Stark, Norman (1975). The Formula Book. New York: Sheed and Ward. p. 28. ISBN 0-8362-0630-4. 
  4. ^ Thickett, Geoffrey (2006). Chemistry 2: HSC Course. Milton, Queensland, Australia: John Wiley & Sons. p. 227. ISBN 978-0-7314-0415-5.