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Sulfur and phosphorus compounds

1-Decanethiol

Also known as decane-1-thiol, Decyl mercaptan, 1-Mercaptodecane

CAS 143-10-2Formula C10H22SMolar mass 174.35 g/molEC 205-584-2
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant, Hazardous to the environment 5 suppliers listed
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1-Decanethiol chemical structure, C10H22S, CAS 143-10-2
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Liquid
Melting point
-26 °C
Boiling point
241 °C
Density
Relative density (water = 1): 0.84
Flash point
98 °C
HS code
293090
Category
Sulfur and phosphorus compounds
UN number
UN 1228
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 1-Decanethiol?

Plain description, key identifiers and synonyms

1-decanethiol is a colorless liquid with a strong odor.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
decane-1-thiol
CAS number
143-10-2 CAS number cross-checkedOther or deprecated CAS: 30174-58-4
EC number
205-584-2
Molecular formula
C10H22S
UNII
A2H8YRB236
MDL number
MFCD00004884
InChIKey
VTXVGVNLYGSIAR-UHFFFAOYSA-N
InChI
InChI=1S/C10H22S/c1-2-3-4-5-6-7-8-9-10-11/h11H,2-10H2,1H3
SMILES (canonical and isomeric)
CCCCCCCCCCS

Synonyms

  • decane-1-thiol
  • Decyl mercaptan
  • 1-Mercaptodecane
  • Decylmercaptan
  • decanethiol
  • n-decanethiol
  • 1-decylthiol
  • n-decylmercaptan
  • nDecylmercaptan
  • 1Mercaptodecane
  • n-Decyl mercaptan
  • Decanethiol-(1)
  • tert-Decyl mercaptan
  • decanthiol
  • n-decanthiol
  • n-decane-1-thiol
  • N-decatyl mercaptan
  • 1-Decanthiol
  • 1-Decanethiol, 96%
  • 1-Decanethiol, 99%
  • 1-Decanethiol, technical, >=95% (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

Physical form
Liquidexp.
Melting point
-26 °Cexp.
Boiling point
241 °Cexp.
Density
Relative density (water = 1): 0.84exp.
Flash point
98 °Cexp.
Solubility
Solubility in water: noneexp.
Vapour pressure
Vapor pressure, Pa at 20 °C:exp.

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
174.35 g/molcalc.
Exact mass
174.1442 Dacalc.
LogP (octanol/water)
4.06calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
8calc.
Heavy atoms
11calc.
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
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H314Causes severe skin burns and eye damage.
  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (25)
  • 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.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • 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).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P363Wash contaminated clothing before reuse.
  • P391Collect spillage.
  • 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 1228

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-Decanethiol suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 5 suppliers
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Where suppliers are based

5 suppliers in 3 countries

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1-Decanethiol 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

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-Decanethiol 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-Decanethiol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is 1-Decanethiol?

1-decanethiol is a colorless liquid with a strong odor.

What is the CAS number of 1-Decanethiol?

The CAS registry number of 1-Decanethiol is 143-10-2. Other or deprecated CAS numbers: 30174-58-4.

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

The molecular formula of 1-Decanethiol is C10H22S and its molar mass is 174.35 g/mol.

What is 1-Decanethiol used for?

Known uses and roles of 1-Decanethiol include building blocks in research and laboratory.

Is 1-Decanethiol hazardous?

1-Decanethiol carries the GHS signal word "Danger". Main hazards: causes severe skin burns and eye damage, causes skin irritation, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 1-Decanethiol?

1-Decanethiol 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-Decanethiol?

CompoundList lists 5 suppliers of 1-Decanethiol in China, United States and Germany. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 1-Decanethiol?

Suppliers quote 1-Decanethiol 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-Decanethiol

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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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