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Sulfur and phosphorus compounds

2-Methoxyethanethiol

Also known as Ethanethiol, 2-methoxy-, 2-methoxyethyl mercaptan, o-Methylmercaptoethanol

CAS 10494-75-4Formula C3H8OSMolar mass 92.16 g/molEC 234-021-3
GHS signal word: Danger. Pictograms: Flammable, Acute toxicity (severe), Harmful or irritant
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2-Methoxyethanethiol chemical structure, C3H8OS, CAS 10494-75-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
10494-75-4
Formula
C3H8OS
Molar mass
92.16 g/mol
Physical form
Liquid
HS code
293090
Category
Sulfur and phosphorus compounds
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 2-Methoxyethanethiol?

Plain description, key identifiers and synonyms

2-Methoxyethanethiol is a chemical substance with the molecular formula C3H8OS and a molar mass of 92.16 g/mol. Its CAS registry number is 10494-75-4.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-methoxyethanethiol
CAS number
10494-75-4 CAS number cross-checked
EC number
234-021-3
Molecular formula
C3H8OS
UNII
95GL0I9Q62
MDL number
MFCD09809104
InChIKey
VHXDADVHQVXSKC-UHFFFAOYSA-N
InChI
InChI=1S/C3H8OS/c1-4-2-3-5/h5H,2-3H2,1H3
SMILES (canonical and isomeric)
COCCS

Synonyms

  • Ethanethiol, 2-methoxy-
  • 2-methoxyethyl mercaptan
  • o-Methylmercaptoethanol
  • 2-Mercaptoethyl methyl ether
  • 2-methoxyethane-1-thiol
  • Ethanethiol, 2-methoxy-(6CI,7CI,8CI,9CI)
  • 2-methoxyethyl-mercaptan

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.

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
92.16 g/molcalc.
Exact mass
92.0296 Dacalc.
LogP (octanol/water)
0.56calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
5calc.
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
GHS02: Flammable
Flammable
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H226Flammable liquid and vapour.
  • H301Toxic if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (29)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • 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.
  • 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.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

2-Methoxyethanethiol suppliers

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2-Methoxyethanethiol 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 2-Methoxyethanethiol 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 2-Methoxyethanethiol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2-Methoxyethanethiol, based on the data on this page

What is 2-Methoxyethanethiol?

2-Methoxyethanethiol is a chemical substance with the molecular formula C3H8OS and a molar mass of 92.16 g/mol. Its CAS registry number is 10494-75-4.

What is the CAS number of 2-Methoxyethanethiol?

The CAS registry number of 2-Methoxyethanethiol is 10494-75-4.

What is the molecular formula and weight of 2-Methoxyethanethiol?

The molecular formula of 2-Methoxyethanethiol is C3H8OS and its molar mass is 92.16 g/mol.

Is 2-Methoxyethanethiol hazardous?

2-Methoxyethanethiol carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, toxic if swallowed, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2-Methoxyethanethiol?

2-Methoxyethanethiol 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 2-Methoxyethanethiol?

Post a free request on CompoundList and suppliers of 2-Methoxyethanethiol will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 2-Methoxyethanethiol?

Suppliers quote 2-Methoxyethanethiol 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 2-Methoxyethanethiol

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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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