Surfactants
REACH
1-Dodecanethiol
CAS Number
112-55-0
EC Number
203-984-1
FEMA Number
FEMA 4581
What is 1-Dodecanethiol?
1-Dodecanethiol (CAS 112-55-0), also known as dodecyl mercaptan, is a long-chain aliphatic thiol used as a chain transfer agent, flavoring component and chemical intermediate.
Where is 1-Dodecanethiol used?
- Polymer manufacturing: regulates chain length during production
- Synthetic rubbers, ABS resins and styrene-butadiene latex: influences mechanical properties of the finished material
- Food flavoring: roasted, meaty and savory notes at trace concentrations
- Personal care: building block for sulfur-containing surfactants and conditioning agents in hair care products
- Coatings and adhesives: surface modifier and stabilizer that improves adhesion and extends shelf life of reactive formulations
Good to know: Food-grade material meeting FCC specifications is available for flavor and fragrance end uses.
Commercial specifications
- Clear to pale yellow liquid in drum and IBC quantities
Other Names (Synonyms)
Dodecyl mercaptan|Dodecane-1-thiol
What are the physical properties of 1-Dodecanethiol?
Melting Point -7 °C
Boiling Point 142-145 °C @ Press: 15 Torr
Density 0.8450 g/cm³ @ Temp: 20 °C
Flash Point >230 °F
Appearance clear liquid
Color Clear
Odor Stench
Form Liquid
Water Solubility IMMISCIBLE
Vapor Pressure 0.002 hPa (20 °C)
Refractive Index n 20/D 1.459(lit.)
Log P 6.18
How is 1-Dodecanethiol classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard
Hazard Statements
H302 Harmful if swallowed
H312 Harmful in contact with skin
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
Precautionary Statements
P233 Keep container tightly closed.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
Which trade and regulatory codes apply to 1-Dodecanethiol?
HS Code 29309070
UN Number 1208
ADR Class 3
Packing Group II
Storage Class 8A - Combustible corrosive hazardous materials
WGK (Germany) 3