- Amyl acetate ester
- 3-Methylbutyl ethanoate
- Isopentyl acetate
Colorless liquid with banana- or pear-like odor.
In alcohol soln as pear flavor in mineral waters & syrups, swelling bath sponges, dyeing & finishing textiles, solvent for old oil colors, tannins, nitrocellulose, lacquers, celluloid & camphor, covering unpleasant odors, perfuming shoe polish, manufacture artificial silk, leather, or pearls, photographic films, celluloid cements, waterproof varnishes, bronzing liquids, & metallic paints.
Registry Numbers and Inventories.
EC Index Number
Flammable; Repeated exposure may cause skin dryness or cracking
R 10 66
S 23.2 25
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
6 (25 C)
Vapor density (air=1)
About 5000 ppm at 20 C (calc.)
0.42 (butyl acetate = 1)
Odor Threshold Odor threshold Less than 100 ppm
0.8837 g/cm3 (0 C)
Solubility in water
0.42 cp (77 C)
1.4005 (20 C)
4.79 (25 C)
Partition coefficient, pKow
Heat of vaporization
Heat of combustion
Hazards and Protection.
Protect against physical damage. Store in a cool, dry well-ventilated location, away from any area where the fire hazard may be acute. Outside or detached storage is preferred. Separate from incompatibles. Containers should be bonded and grounded for transfers to avoid static sparks. Storage and use areas should be No Smoking areas. Use non-sparking type tools and equipment, including explosion proof ventilation
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
A half-face respirator with an organic vapor cartridge and particulate filter (NIOSH type N95 or better filter) may be worn for up to ten times the exposure limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest. A full-face piece respirator with an organic vapor cartridge and particulate filter (NIOSH N 100 filter) may be worn up to 50 times the exposure limit, or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest.
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. Use a spark-proof tool.
Stable under normal temperatures and pressures.
Oxidizing agents, strong acids, strong bases, and reducing agents.
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Upper exp. limit, %
Lower exp. limit, %
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Water may be ineffective. For large fires, use water spray, fog or alcohol-resistant foam. Cool containers with flooding quantities of water until well after fire is out.
Flammable liquid. Above flash point, vapor-air mixtures are explosive within flammable limits noted above.
Flashback along vapor trail may occur. Vapor may explode if ignited in an enclosed area. When heated emits acrid fumes. When exposed to flames can react vigorously with reducing materials. Sensitive to static discharge.
Fire may produce irritating, corrosive and/or toxic gases.
OSHA PEL: TWA 100 ppm (525 mg/m3) NIOSH REL: TWA 100 ppm (525 mg/m3) NIOSH IDLH: 1000 ppm
Prolonged or repeated skin exposure may cause severe irritation or dermatitis. Persons with pre-existing skin disorders or eye problems, or impaired liver, kidney or respiratory function may be more susceptible to the effects of the substance.
Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
Causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath. Affects central nervous system causing dizziness, incoordination and unconsciousness.
Causes irritation to skin. Symptoms include redness, itching, and pain.
Causes irritation, redness, and pain
DO NOT INDUCE VOMITING. Give large quantities of water. Never give anything by mouth to an unconscious person. Get medical attention.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.