Agent Name | tert-Butyl mercaptan |
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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." |
Exposure Assessment | |
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; |
Flammability (NFPA) | |
Adverse Effects | |
Other Poison | Chemical Asphyxiant |
Links to Other NLM Databases | |
Health Studies | Human Health Effects from Hazardous Substances Data Bank: |
Toxicity Information | |
Chemical Information | |
Related Information in HazMap | |
Other Information | No other related information on this agent was found. |