ISOBUTYL ISOBUTYRATE

Chemical Identification
Chemical Identification
CAS # 97-85-8
Formula

C₈H₁₆O₂

Synonyms

2-methylpropyl isobutyrate; 2-methylpropyl 2-methylpropanoate; 2-methylpropyl 2-methylpropionate; isobutyric acid, isobutyl ester

Physical Properties
Physical Properties
Physical description A colorless liquid with a pleasant fruity odor.
Boiling point 299.7°F Molecular weight 144.24
Freezing point/melting point -113.3°F Vapor pressure
Flash point 99°F Vapor density
Specific gravity 0.853-0.857 Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 0 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.) 1537
Sampling group
Sampler/Sampling media CSC tube (100/50 mg) [SKC 226-01]
Sampling time*

50 min

Sampling volume (TWA)*

10 L

Sampling flow rate (TWA)*

0.2 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FID
Method reference OSHA PV2090 (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
Model/Type
Sampling information
(see manufacturer instructions)
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 REL-TWA TLV-TWA PEL-TWA
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

NA

Skin notation

NA

Skin notation

NA

Skin notation

NA

Notes:

Not established

Notes:

Not established

Notes:

Not established

Notes:

Not established

Health factors:  See NIH-NLM PubChem. IDLH
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 - Isobutyl isobutyrate

NIOSH: Pocket Guide to Chemical Hazards - Not Listed

Literature References

  • Drake, J.J., Butterworth, K.R., Gaunt, I.F. and Grasso, P.: Short-term toxicity study of isobutyl isobutyrate in rats. Food Cosmet. Toxicol. 16(4): 337-342, 1978.
  • Eastman Product Safety and Health: Material Safety Data Sheet: Propanoic acid, 2-methyl-, 2-methylpropyl ester (revised 08/26/2004), 6 pp.

Last Updated Date : 12/31/2020