Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- 2-Methyl-2-propanethiol
- Product Code
- 149020025; 149020000; 149020500; 149025000
- Chemical Name
- 2-Methyl-2-propanethiol
- Synonyms
- tert-Butyl mercaptan
Regulatory Identifiers
- CAS Number
- 75-66-1 Check regulations →
- EC Number
- 200-890-2 Check regulations →
- REACH No.
- 01-2119491288-26
Identified Uses
Laboratory chemicals. Sector of use: SU3 - Industrial uses: Uses of substances as such or in preparations at industrial sites. Product category: PC21 - Laboratory chemicals. Process categories: PROC15 - Use as a laboratory reagent. Environmental release category: ERC6a - Industrial use resulting in manufacture of another substance (use of intermediates)
Uses advised against
No Information available
Manufacturers & Suppliers
Thermo Fisher Scientific
manufacturer
Janssen Pharmaceuticalaan 3a, 2440 Geel, Belgium
Fisher Scientific UK
distributor
Bishop Meadow Road, Loughborough, Leicestershire LE11 5RG, United Kingdom
Fisher Scientific AG
distributor
Neuhofstrasse 11, CH 4153 Reinach
+41 (0) 56 618 41 11
Emergency Contacts
US Info
001-800-227-6701
Europe Info
+32 14 57 52 11
US Emergency
001-201-796-7100
Europe Emergency
+32 14 57 52 99
CHEMTREC
001-800-424-9300
CHEMTREC
001-703-527-3887
Tox Info Suisse
145
24hr
Tox Info Suisse
+41-44 251 51 51
Chemtrec
0800 564 402
24h
Chemtrec
+41-43 508 20 11
Hazard Identification
GHS classification, signal word, pictograms, and hazard statements
Hazard Classifications
GHS Pictograms
GHS02
GHS07
GHS09
Hazard Statements
Precautionary Statements
Get a free compliance audit
Upload your SDS inventory and get a detailed compliance report
Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| 2-Methyl-2-propanethiol EC: 200-890-2 | 75-66-1 | 95% | Yes |
First Aid Measures
Emergency procedures for chemical exposure incidents
Remove to fresh air. If not breathing, give artificial respiration. Get medical attention.
Symptoms: Difficulty in breathing. Inhalation of high vapor concentrations may cause symptoms like headache, dizziness, tiredness, nausea and vomiting.
Get medical attention. Wash off immediately with plenty of water for at least 15 minutes.
Symptoms: May cause allergic skin reaction. Symptoms of allergic reaction may include rash, itching, swelling, trouble breathing, tingling of the hands and feet, dizziness, lightheadedness, chest pain, muscle pain or flushing.
Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention.
Clean mouth with water. Get medical attention.
Immediate Medical Attention
Get medical attention.
Medical Treatment
Treat symptomatically.
Firefighting Measures
Extinguishing media, specific hazards, and firefighter protection
Carbon dioxide (CO₂). Dry chemical. Chemical foam. Water mist may be used to cool closed containers.
No information available.
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Containers may explode when heated. Vapors may form explosive mixtures with air. Extremely flammable.
As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.
Firefighter Protection
As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.
Accidental Release Measures
Spill cleanup procedures, containment, and environmental protection
Do not flush into surface water or sanitary sewer system.
Soak up with inert absorbent material
Materials: sand, silica gel, acid binder, universal binder, sawdust
Related Products
Similar products with comparable safety profiles
Handling and Storage
Safe handling precautions, storage conditions, and workplace requirements
Avoid contact with skin and eyes. Do not breathe mist/vapors/spray. Take precautionary measures against static discharges. Handle product only in closed system or provide appropriate exhaust ventilation. Use spark-proof tools and explosion-proof equipment. Use only non-sparking tools. Keep away from open flames, hot surfaces and sources of ignition. To avoid ignition of vapors by static electricity discharge, all metal parts of the equipment must be grounded.
Keep in a dry, cool and well-ventilated place. Keep container tightly closed. Keep away from heat, sparks and flame. Flammables area.
Handle in accordance with good industrial hygiene and safety practice. Keep away from food, drink and animal feeding stuffs. Do not eat, drink or smoke when using this product. Remove and wash contaminated clothing and gloves, including the inside, before re-use. Wash hands before breaks and after work.
Keep away from open flames, hot surfaces and sources of ignition. Use spark-proof tools and explosion-proof equipment. Use only non-sparking tools. To avoid ignition of vapors by static electricity discharge, all metal parts of the equipment must be grounded.
Exposure Controls / PPE
Occupational exposure limits, engineering controls, and protective equipment
Use explosion-proof electrical/ventilating/lighting/equipment. Ensure that eyewash stations and safety showers are close to the workstation location. Ensure adequate ventilation, especially in confined areas. Wherever possible, engineering control measures such as the isolation or enclosure of the process, the introduction of process or equipment changes to minimise release or contact, and the use of properly designed ventilation systems, should be adopted to control hazardous materials at source
Protective gloves. Glove material: Natural rubber, Nitrile rubber, Neoprene, PVC. Breakthrough time: See manufacturers recommendations. EU standard: EN 374.
Goggles (European standard - EN 166)
No protective equipment is needed under normal use conditions. Large scale/emergency use: Use a NIOSH/MSHA or European Standard EN 136 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Small scale/Laboratory use: Maintain adequate ventilation
Wear appropriate protective gloves and clothing to prevent skin exposure. Inspect gloves before use. observe the instructions regarding permeability and breakthrough time which are provided by the supplier of the gloves. (Refer to manufacturer/supplier for information) gloves are suitable for the task: Chemical compatibility, Dexterity, Operational conditions, User susceptibility, e.g. sensitisation effects, also take into consideration the specific local conditions under which the product is used, such as the danger of cuts, abrasion. gloves with care avoiding skin contamination.
Prevent product from entering drains. Do not allow material to contaminate ground water system.
Physical and Chemical Properties
Appearance, physical state, melting point, boiling point, and material characteristics
Stability and Reactivity
Chemical stability, hazardous reactions, and incompatible materials
Stable under normal conditions.
None known, based on information available
Hazardous Polymerization: No information available. Hazardous Reactions: No information available.
Keep away from open flames, hot surfaces and sources of ignition. Incompatible products.
Bases. Metals. Reducing Agent.
Carbon monoxide (CO). Carbon dioxide (CO₂). Sulfur oxides. Sulfides.
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
The data for this section has not been processed yet.
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
The data for this section has not been processed yet.
Transport Information
UN numbers, shipping names, transport classes, and regulatory requirements
- UN Number
- UN2347
- Shipping Name
- BUTYL MERCAPTAN
- Transport Class
- 3
- Packing Group
- II
Regulatory Information
Chemical regulations, safety assessments, and compliance status
The data for this section has not been processed yet.
Frequently Asked Questions
Common questions about safety, handling, and properties
What other names is 2-Methyl-2-propanethiol known by?
2-Methyl-2-propanethiol is also known as: tert-Butyl mercaptan
What is the hazard signal word for 2-Methyl-2-propanethiol?
The signal word is danger.
What is the physical form of 2-Methyl-2-propanethiol?
2-Methyl-2-propanethiol is a liquid appearing as colorless . It has stench odor.
What is 2-Methyl-2-propanethiol used for?
Laboratory chemicals. Sector of use: SU3 - Industrial uses: Uses of substances as such or in preparations at industrial sites. Product category: PC21 - Laboratory chemicals. Process categories: PROC15 - Use as a laboratory reagent. Environmental release category: ERC6a - Industrial use resulting in manufacture of another substance (use of intermediates)
What are the hazard statements for 2-Methyl-2-propanethiol?
This substance has 3 hazard statements:
- H225: Highly flammable liquid and vapor
- H317: May cause an allergic skin reaction
- H411: Toxic to aquatic life with long lasting effects
What is the melting point of 2-Methyl-2-propanethiol?
The melting point is -1.1 °C / 30 °F and the boiling point is 62 - 65 °C / 143.6 - 149 °F.