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Synthetic aroma chemicals

Dimethyl sulfide

Also known as Methyl sulfide, Methane, thiobis-, Methyl thioether

CAS 75-18-3Formula C2H6SMolar mass 62.14 g/molEC 200-846-2
GHS signal word: Danger. Pictograms: Flammable, Corrosive, Acute toxicity (severe), Harmful or irritant 73 suppliers listed
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Dimethyl sulfide chemical structure, C2H6S, CAS 75-18-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless, volatile liquid
Melting point
-98.2 °C
Boiling point
37.3 °C
Density
0.8483 g/cm³ at 20 °C
Flash point
-48 °C
HS code
293090
Category
Synthetic aroma chemicals
UN number
UN 1164
Illustrative photo, clear colourless liquid in a glass reagent bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Dimethyl sulfide?

Plain description, key identifiers and synonyms

Dimethyl sulfide is a methyl sulfide in which the sulfur atom is substituted by two methyl groups. It is produced naturally by some marine algae. It has a role as a marine metabolite, an Escherichia coli metabolite, a bacterial xenobiotic metabolite, an EC 3.5.1.4 (amidase) inhibitor and an algal metabolite.

Dimethyl sulfide is a principal chemical compound responsible for the sea odor.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
methylsulfanylmethane
CAS number
75-18-3 CAS number cross-checkedOther or deprecated CAS: 31533-72-9
EC number
200-846-2
Molecular formula
C2H6S
UNII
QS3J7O7L3U
MDL number
MFCD00008562
INCI name
DIMETHYL SULPHIDE
InChIKey
QMMFVYPAHWMCMS-UHFFFAOYSA-N
InChI
InChI=1S/C2H6S/c1-3-2/h1-2H3
SMILES (canonical and isomeric)
CSC

Synonyms

  • Methyl sulfide
  • Methane, thiobis-
  • Methyl thioether
  • dimethyl sulphide
  • dimethylsulfide
  • 2-Thiapropane
  • Dimethyl thioether
  • Dimethylsulphide
  • Methylthiomethane
  • Methylsulfanylmethane
  • Methyl sulphide
  • Dimethylsulfid
  • Thiobismethane
  • (Methylsulfanyl)methane
  • Methyl monosulfide
  • Dimethyl monosulfide
  • 2-Thiopropane
  • Methanethiomethane
  • Thiobis(methane)
  • Sulfure de methyle
  • Exact-S
  • Dimethyl sulfide (natural)
  • dimethylsulfane
  • Methylthiomethyl radical
  • Methane, 1,1'-thiobis-
Show all 36 synonyms
  • [SMe2]
  • (CH3)2S
  • methylsulfide
  • Methylsulphide
  • Thiopropane
  • Thiobis-methane
  • di-methylsulfide
  • Dimethyl sulfane
  • Sulfide, methyl-
  • Me2S
  • Reduced-dmso

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, volatile liquidexp.
Odour
UNPLEASANT ODOR OF WILD RADISH, CABBAGE-LIKEexp.
Taste
Characteristic flavorexp.
Melting point
-98.2 °Cexp.
Boiling point
37.3 °Cexp.
Density
0.8483 g/cm³ at 20 °Cexp.
Flash point
-48 °Cexp.
Autoignition temperature
206 °Cexp.
Solubility
Soluble in alcohol, ether, soluble in water at concentrations below 300 mMexp.
Vapour pressure
502 mm Hg at 25 °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
62.14 g/molcalc.
Exact mass
62.019 Dacalc.
LogP (octanol/water)
0.98calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
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
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
420NFPA 704 rating

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H301Toxic if swallowed.
  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (30)
  • 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.
  • P305 + P354 + P338If in eyes: Immediately rinse 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.
UN number
UN 1164
Transport hazard class
3
Packing group
II

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

Dimethyl sulfide suppliers

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

All 73 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

73 suppliers in 12 countries

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Dimethyl sulfide 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

Reported uses (usual): alcoholic beverages 0.44 ppm, non-alcoholic beverages 0.73 ppm, condiments, relish 1.77 ppm, fats, oils 0.02 ppm, frozen dairy 0.74 ppm, imitation dairy 0.02 ppm, soft candy 1.16 ppm, hard candy 0.03 ppm, baked goods 4.34 ppm, chewing gum 12.83 ppm, gelatins and puddings 0.54 ppm, gravies 0.52 ppm, meat products 4.01 ppm. FEMA No 2746.

Reported uses (ppm): (Flavor and Extract Manufacturers' Association, 2005)

Table: Reported uses (ppm): (Flavor and Extract Manufacturers' Association, 2005) [Table#1110].

Dimethyl sulfide is used as a gas odorant, catalyst impregnator, and food flavoring agent.

Used as a chemical intermediate for the synthesis of dimethyl sulfoxide.

Industrial uses: Processing aids, specific to petroleum production, Intermediate, Fragrance, Other.

Consumer uses: Intermediate.

Cosmetic ingredient, INCI name DIMETHYL SULPHIDE(perfuming)

Roles

  • Escherichia coli metabolite
  • algal metabolite
  • bacterial metabolite
  • bacterial xenobiotic metabolite
  • enzyme inhibitor
  • eukaryotic metabolite
  • marine metabolite
  • metabolite
  • prokaryotic metabolite
  • xenobiotic metabolite

Functional uses

  • Flavouring and nutrient
  • Fragrance

Cosmetic functions

  • Perfuming

How it is made

/It is/ obtained by distilling potassium methyl sulfate with concentrated aq potassium sulfide.

By interaction of a solution of potassium sulfide and methyl chloride in methanol.

Methanol + hydrogen sulfide (thiolation)

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

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

Frequently asked questions

Quick answers about Dimethyl sulfide, based on the data on this page

What is Dimethyl sulfide?

Dimethyl sulfide is a methyl sulfide in which the sulfur atom is substituted by two methyl groups. It is produced naturally by some marine algae. It has a role as a marine metabolite, an Escherichia coli metabolite, a bacterial xenobiotic metabolite, an EC 3.5.1.4 (amidase) inhibitor and an algal metabolite.

What is the CAS number of Dimethyl sulfide?

The CAS registry number of Dimethyl sulfide is 75-18-3. Other or deprecated CAS numbers: 31533-72-9.

What is the molecular formula and weight of Dimethyl sulfide?

The molecular formula of Dimethyl sulfide is C2H6S and its molar mass is 62.14 g/mol.

What is Dimethyl sulfide used for?

Reported uses (usual): alcoholic beverages 0.44 ppm, non-alcoholic beverages 0.73 ppm, condiments, relish 1.77 ppm, fats, oils 0.02 ppm, frozen dairy 0.74 ppm, imitation dairy 0.02 ppm, soft candy 1.16 ppm, hard candy 0.03 ppm, baked goods 4.34 ppm, chewing gum 12.83 ppm, gelatins and puddings 0.54 ppm, gravies 0.52 p…

Is Dimethyl sulfide hazardous?

Dimethyl sulfide carries the GHS signal word "Danger". Main hazards: highly 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 Dimethyl sulfide?

Dimethyl sulfide 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 Dimethyl sulfide?

CompoundList lists 73 suppliers of Dimethyl sulfide in China, United States, India, Germany and 8 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Dimethyl sulfide in India?

8 suppliers in India list Dimethyl sulfide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Dimethyl sulfide?

Suppliers quote Dimethyl sulfide 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 Dimethyl sulfide

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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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