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Insecticides and acaricides

1-Dodecanethiol

Also known as Dodecyl mercaptan, Lauryl mercaptan, n-Dodecyl mercaptan

CAS 112-55-0Formula C12H26SMolar mass 202.41 g/molEC 203-984-1
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant, Serious health hazard, Hazardous to the environment 35 suppliers listed
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1-Dodecanethiol chemical structure, C12H26S, CAS 112-55-0
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless, water-white, or pale-yellow, oily liquid [Note: A solid below 15 degrees F]
Melting point
-7 °C
Boiling point
266 to 285
Density
Relative density (water = 1): 0.85
Flash point
128 °C
HS code
293090
Category
Insecticides and acaricides
UN number
UN 3334
Illustrative photo, clear liquid in sealed glass ampoules on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is 1-Dodecanethiol?

Plain description, key identifiers and synonyms

Lauryl mercaptan is an oily colorless liquid with a mild skunk odor. Freezing point 19 °F. (USCG, 1999)

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dodecane-1-thiol
CAS number
112-55-0 CAS number cross-checkedOther or deprecated CAS: 1322-36-7, 30237-11-7
EC numbers
203-984-1, 215-338-6
Molecular formula
C12H26S
UNII
S8ZJB6X253
MDL number
MFCD00004885
InChIKey
WNAHIZMDSQCWRP-UHFFFAOYSA-N
InChI
InChI=1S/C12H26S/c1-2-3-4-5-6-7-8-9-10-11-12-13/h13H,2-12H2,1H3
SMILES (canonical and isomeric)
CCCCCCCCCCCCS

Synonyms

  • Dodecyl mercaptan
  • Lauryl mercaptan
  • n-Dodecyl mercaptan
  • n-Dodecanethiol
  • 1-Mercaptododecane
  • n-Lauryl mercaptan
  • N-Dodecylmercaptan
  • 1-Dodecyl mercaptan
  • Pennfloat M
  • Dodecylmercaptan
  • 1-dodecylthiol
  • Pennfloat S
  • Lauryl mercaptide
  • M-Lauryl mercaptan
  • M-Dodecyl mercaptan
  • Thiokalcol 20
  • Dodecane-1-thiol
  • Dodecanethiol
  • n-Dodecylthiol
  • Dodecylthiol
  • dodecanthiol
  • Dodecyl mercaptan (VAN)
  • NDM
  • 1-Dodecanethiol, antimony(3+) salt
  • laurylmercaptan
Show all 37 synonyms
  • Thioantimonic acid (H3SbS3), tridodecyl ester
  • dodecane thiol
  • 1-dodecanthiol
  • dodecyl-mercaptan
  • 1-dodecane thiol
  • 1-dodecylmercaptan
  • n-dodecyl-mercaptan
  • Dodecanethiol-(1)
  • normal dodecylmercaptan
  • normal dodecyl mercaptan
  • 1-Dodecanethiol, >=98%
  • 1-Dodecanethiol, purum, >=97.0% (GC)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Colorless, water-white, or pale-yellow, oily liquid [Note: A solid below 15 degrees F]exp.
Odour
MILD CHARACTERISTICexp.
Melting point
-7 °Cexp.
Boiling point
266 to 285exp.
Density
Relative density (water = 1): 0.85exp.
Flash point
128 °Cexp.
Solubility
Insol in water, sol in ethanol, ether, chloroformexp.
Vapour pressure
0.00853 mm Hg @ 20 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
202.41 g/molcalc.
Exact mass
202.1755 Dacalc.
LogP (octanol/water)
4.84calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
10calc.
Heavy atoms
13calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment
120NFPA 704 rating

Hazard statements

  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H314Causes severe skin burns and eye damage.
  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H318Causes serious eye damage.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled.
  • H335May cause respiratory irritation.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (34)
  • P233Keep container tightly closed.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P317If swallowed: Get medical help.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P352If on skin: Wash with plenty of water.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P342 + P316If experiencing respiratory symptoms: Get emergency medical help immediately.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P363Wash contaminated clothing before reuse.
  • P391Collect spillage.
  • P403Store in a well-ventilated place.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3334

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

1-Dodecanethiol suppliers

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All 35 suppliers
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Where suppliers are based

35 suppliers in 10 countries

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1-Dodecanethiol price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Polymerization regulator for styrene-butadiene rubber.

In chemical syntheses of bactericides, as complexing agent, such as for the removal of metals from wastes.

In manufacture of synthetic rubber, plastics, pharmaceuticals, insecticides, fungicides, nonionic detergent.

Flotation reagent.

Industrial uses: Flame retardant, Intermediate, Chain transfer agent, Lubricating agent, Antioxidant.

Consumer uses: Antioxidant.

Functional uses

  • Flavouring and nutrient
  • Plasticizer

How it is made

Reaction of metallic hydrosulfide with n-dodecyl chloride

This mercaptan can be produced by action of hydrogen sulfide on lauryl alcohol or on dodecene.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 1-Dodecanethiol is traded under.

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 1-Dodecanethiol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 1-Dodecanethiol, based on the data on this page

What is 1-Dodecanethiol?

Lauryl mercaptan is an oily colorless liquid with a mild skunk odor. Freezing point 19 °F. (USCG, 1999)

What is the CAS number of 1-Dodecanethiol?

The CAS registry number of 1-Dodecanethiol is 112-55-0. Other or deprecated CAS numbers: 1322-36-7, 30237-11-7.

What is the molecular formula and weight of 1-Dodecanethiol?

The molecular formula of 1-Dodecanethiol is C12H26S and its molar mass is 202.41 g/mol.

What is 1-Dodecanethiol used for?

Polymerization regulator for styrene-butadiene rubber. In chemical syntheses of bactericides, as complexing agent, such as for the removal of metals from wastes. In manufacture of synthetic rubber, plastics, pharmaceuticals, insecticides, fungicides, nonionic detergent. Flotation reagent.

Is 1-Dodecanethiol hazardous?

1-Dodecanethiol carries the GHS signal word "Danger". Main hazards: harmful if swallowed, harmful in contact with skin, causes severe skin burns and eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 1-Dodecanethiol?

1-Dodecanethiol is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 1-Dodecanethiol?

CompoundList lists 35 suppliers of 1-Dodecanethiol in China, United States, India, Turkey and 6 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 1-Dodecanethiol in India?

2 suppliers in India list 1-Dodecanethiol on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 1-Dodecanethiol?

Suppliers quote 1-Dodecanethiol on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 1-Dodecanethiol

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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