# NIOSH Pocket Guide to Chemical Hazards
Isoamyl acetate | CAS 123-92-2
CH3COOCH2CH2CH(CH3)2 | RTECS NS9800000
Synonyms & Trade Names Banana oil, Isopentyl acetate, 3-Methyl-1-butanol acetate, 3-Methylbutyl ester of acetic acid, 3-Methylbutyl ethanoate | DOT ID & Guide 1104 129
Exposure Limits | NIOSH REL: TWA 100 ppm (525 mg/m3)
OSHA PEL: TWA 100 ppm (525 mg/m3)
IDLH 1000 ppm | Conversion 1 ppm = 5.33 mg/m3
Physical Description Colorless liquid with a banana-like odor.
MW: 130.2 | BP: 288°F | FRZ: -109°F | Sol: 0.3%
VP: 4 mmHg | IP: ? |  | Sp.Gr: 0.87
Fl.P: 77°F | UEL: 7.5% | LEL(212°F): 1.0% |
Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.
Incompatibilities & Reactivities Nitrates; strong oxidizers, alkalis & acids
Measurement Methods NIOSH 1450; OSHA 7
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush promptly Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA Up to 1000 ppm: (APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)/(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)/(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/(APF = 10) Any supplied-air respirator/(APF = 50) Any self-contained breathing apparatus with a full facepiece Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, nose, throat; dermatitis; in animals: narcosis
Target Organs Eyes, skin, respiratory system, central nervous system
See also: INTRODUCTION