tert-Butyl mercaptan
Agent Name
tert-Butyl mercaptan
Alternative Name
2-Methyl-2-propanethiol
CAS Number
75-66-1
Formula
C4-H10-S
Major Category
Other Classes
Synonyms
2-Methyl-2-propanethiol; 1,1-Dimethylethanethiol; 2-Isobutanethiol; 2-Propanethiol, 2-methyl-; t-Butylmercaptan; tert-Butanethiol; t-Butyl mercaptan; tert-Butylmercaptan; tert-Butylthiol; tertiary-Butyl mercaptan; [ChemIDplus] UN2347
Category
Thiols
Description
Liquid with a strong skunky odor; [Merck Index] Clear colorless liquid with an unpleasant odor; [MSDSonline]
Sources/Uses
Used as an odorant for natural gas, a chemical intermediate, and a bacterial nutrient; [HSDB]
Comments
An eye and respiratory tract irritant; Inhalation of high concentrations can cause CNS depression; [ICSC] May cause mild skin and eye irritation, based on animal studies; Inhalation of high concentrations can cause CNS depression; [CHEMINFO] An irritant; May cause serious eye injury; [MSDSonline] See "THIOLS."
Biomedical References
Exposure Assessment
MAK
1 ppm
Vapor Pressure
181 mm Hg
Odor Threshold Low
0.00081 ppm
Lethal Concentration
LC50 (rat) = 22,200 ppm/4h
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Butyl mercaptan." Odor threshold (100% recognition) from CHEMINFO; VP from ChemIDplus;
NFPA
may ignite at ambient temp
Adverse Effects
Other Poison
Chemical Asphyxiant
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.