sec-Amyl acetate

sec-Amyl acetate is an organic compound and an ester. It is formed in an esterification reaction of sec-amyl alcohol (2-pentanol) and acetic acid.[2] It is a colorless liquid.

sec-Amyl acetate
Preferred IUPAC name
Pentan-2-yl acetate
Other names
1-Methylbutyl acetate
2-Pentanol acetate
2-Pentyl ester of acetic acid
3D model (JSmol)
ECHA InfoCard 100.009.952
Molar mass 130.187 g·mol−1
Appearance Colorless liquid[1]
Odor Mild,[1] like bananas[2]
Density 0.87 g/mL (20°C)[1]
Melting point −78 °C; −109 °F; 195 K [1]
Boiling point 121 °C; 249 °F; 394 K [1]
0.2g/100g water (20°C)[2]
Vapor pressure 7 mmHg (20°C)[1]
GHS Signal word Warning[2]
Flash point 32 °C; 89 °F; 305 K[1]
380 °C (716 °F; 653 K)
Explosive limits 1%-7.5% (20°C)[1]
Lethal dose or concentration (LD, LC):
9200 ppm (guinea pig, 7 hr)
10,000 ppm (guinea pig, 5 hr)[3]
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 125 ppm (650 mg/m3)[1]
REL (Recommended)
TWA 125 ppm (650 mg/m3)[1]
IDLH (Immediate danger)
1000 ppm[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references


  1. NIOSH Pocket Guide to Chemical Hazards. "#0032". National Institute for Occupational Safety and Health (NIOSH).
  2. "2-Pentyl Acetate". PubChem. NCBI.
  3. "sec-Amyl acetate". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

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