ISOAMYL ACETATE (ISOPENTYL ACETATE)†

Chemical Identification
Chemical Identification
CAS # 123-92-2
Formula

C₇H₁₄O₂

Synonyms

banana oil; Isopentyl acetate; 3-methyl-1-butanol acetate; 3-methylbutyl ester of acetic acid; 3-methylbutyl ethanoate

Physical Properties
Physical Properties
Physical description Colorless liquid with a banana-like odor.
Boiling point 288°F Molecular weight 130.018
Freezing point/melting point -109°F Vapor pressure 4 mmHg
Flash point 77°F Vapor density 4.49
Specific gravity 0.876 at 59°F Ionization potential
Lower explosive limit (LEL) 1% at 212°F Upper explosive limit (UEL) 7.5%
NFPA health rating 1 NFPA fire rating 3
NFPA reactivity rating 0 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 1530
Sampling group
Sampler/Sampling media CSC tube (100/50 mg) [SKC 226-01]
Sampling time*

240 min

Sampling volume (TWA)*

24 L

Sampling flow rate (TWA)*

0.1 L/min

Sampling volume (STEL/Peak/C)*

1.5 L

Sampling flow rate (STEL/Peak/C)*

0.1 L/min

Analytical method instruments GC-FID
Method reference OSHA PV2142 (partially validated)
Notes
Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device Detector tube
Model/Type Gastec 147
Sampling information
(see manufacturer instructions)
4 min per pump stroke, 2-200 ppm range, uncertainty 15% for 10-50 ppm, 10% for 50-200 ppm
Exposure Limits
Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA

100 ppm (525 mg/m³)

REL-TWA

100 ppm (525 mg/m³)

TLV-TWA

50 ppm [1997]

PEL-TWA

50 ppm (266 mg/m³)

PEL-STEL REL-STEL TLV-STEL

100 ppm [1997]

PEL-STEL

100 ppm (532 mg/m³)

PEL-C REL-C TLV-C PEL-C
Skin notation

N

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

See 29 CFR 1910.1000 Table Z-1.

Notes: Notes: Notes:

as pentyl acetate

Health factors:  See NIH-NLM PubChem. IDLH

1000 ppm

Carcinogenic classifications: Not listed Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Iso-amyl acetate

NIOSH: Pocket Guide to Chemical Hazards - Isoamyl acetate

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Pentyl acetate, all isomers. See annual publication for most recent information.
  • Bensafi, M., Rouby, C., Farget, V., Bertrand, B., Vigouroux, M. and Holley, A.: Autonomic nervous system responses to odours: the role of pleasantness and arousal. Chem. Senses 27(8): 703-709, 2002.
  • Grossmann, N., Brin, I., Aizenbud, D., Sichel, J.Y., Gross-Isseroff, R. and Steiner, J.: Nasal aikrflow and olfactory function after the repair of cleft palate (with and without cleft lip). Oral. Surg. Oral Med. Oral Pathol. Oral Radiol. Endod. 100(5): 539-544, 2005.
  • Pohanish, R.P. (editor): Isoamyl Acetate. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1319-1320.

Last Updated Date : 12/31/2020