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Analytical reagents

Dimethyl selenide

Also known as Dimethylselenide, Dimethylselenium, Methyl selenide

CAS 593-79-3Formula C2H6SeMolar mass 109.03 g/molEC 209-807-4
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Serious health hazard, Hazardous to the environment 4 suppliers listed
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Dimethyl selenide chemical structure, C2H6Se, CAS 593-79-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Liquid
Melting point
-87.2 °C
Boiling point
57 °C
Density
1.4077 g/cm³ at 15 °C
Solubility
24.4 mg/g water
HS code
293190
Category
Analytical reagents
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Dimethyl selenide?

Plain description, key identifiers and synonyms

Dimethylselenide is an organoselenium compound of two methyl groups covalently bound to a selenium. It has a role as a NMR chemical shift reference compound, a plant metabolite and a bacterial xenobiotic metabolite.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
methylselanylmethane
CAS number
593-79-3 CAS number cross-checked
EC number
209-807-4
Molecular formula
C2H6Se
UNII
YK0R6JKT6H
MDL number
MFCD00014848
InChIKey
RVIXKDRPFPUUOO-UHFFFAOYSA-N
InChI
InChI=1S/C2H6Se/c1-3-2/h1-2H3
SMILES (canonical and isomeric)
C[Se]C

Synonyms

  • Dimethylselenide
  • Dimethylselenium
  • Methyl selenide
  • Methyl selenium
  • methylselanylmethane
  • Selenide, dimethyl-
  • DMe-selenide
  • (Methylselanyl)methane
  • Methane, selenobis-
  • Selenium dimethyl
  • (CH3)2Se
  • Methyl selenide (8CI)
  • Methane, selenobis- (9CI)
  • 4-01-00-01288 (Beilstein Handbook Reference)
  • Selenobismethane
  • C2H6Se
  • Dimethyl-Selenide
  • Selenobis-Methane
  • (Methylseleno)methane
  • Selenobismethane, 9CI
  • Methyl selenide, 8CI
  • (Methylselanyl)methane #
  • Dimethyl selenide, >=99.0% (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
Liquidexp.
Odour
Garlic odorexp.
Melting point
-87.2 °Cexp.
Boiling point
57 °Cexp.
Density
1.4077 g/cm³ at 15 °Cexp.
Solubility
24.4 mg/g waterexp.
Vapour pressure
32 kPaexp.

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
109.03 g/molcalc.
Exact mass
109.9635 Dacalc.
LogP (octanol/water)
0.79calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
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
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H331Toxic if inhaled.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (16)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P316Get emergency medical help immediately.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • 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.

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 selenide suppliers

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

All 4 suppliers
4 of 4 offers

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Where suppliers are based

4 suppliers in 3 countries

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Dimethyl selenide 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

Roles

  • NMR chemical shift reference compound
  • bacterial metabolite
  • bacterial xenobiotic metabolite
  • eukaryotic metabolite
  • metabolite
  • plant metabolite
  • prokaryotic metabolite
  • reference compound
  • xenobiotic metabolite

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 Dimethyl selenide is traded under.

HS 2931.90Indicative HS code

Organo-inorganic compounds, other than tetramethyl lead, tetraethyl lead, tributyltin compounds…

World exports in 2024
$3.97B
+5.3% vs 2023, imports $3.93B
2019 to 2024
Top exporters
  1. China28.3%
  2. United States15.6%
  3. Germany15.1%
Top importers
  1. United States14.6%
  2. China13.0%
  3. South Korea8.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Dimethyl selenide?

Dimethylselenide is an organoselenium compound of two methyl groups covalently bound to a selenium. It has a role as a NMR chemical shift reference compound, a plant metabolite and a bacterial xenobiotic metabolite.

What is the CAS number of Dimethyl selenide?

The CAS registry number of Dimethyl selenide is 593-79-3.

What is the molecular formula and weight of Dimethyl selenide?

The molecular formula of Dimethyl selenide is C2H6Se and its molar mass is 109.03 g/mol.

What is Dimethyl selenide used for?

Known uses and roles of Dimethyl selenide include nmr chemical shift reference compound, bacterial metabolite, bacterial xenobiotic metabolite, eukaryotic metabolite, metabolite and 4 more.

Is Dimethyl selenide hazardous?

Dimethyl selenide carries the GHS signal word "Danger". Main hazards: toxic if swallowed, toxic if inhaled, may cause damage to organs through prolonged or repeated exposure. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dimethyl selenide?

Dimethyl selenide is usually classified under HS code 293190 (X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dimethyl selenide?

CompoundList lists 4 suppliers of Dimethyl selenide in United States, Germany and Japan. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dimethyl selenide?

Suppliers quote Dimethyl selenide 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 selenide

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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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