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Chemical substance

Selenide, diethyl-

Also known as Diethyl selenide, Diethylselenide, Diethylselenium

CAS 627-53-2Formula C4H10SeMolar mass 137.08 g/molEC 628-361-5
GHS signal word: Danger. Pictograms: Flammable, Acute toxicity (severe), Serious health hazard, Hazardous to the environment 1 supplier listed
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Selenide, diethyl- chemical structure, C4H10Se, CAS 627-53-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
627-53-2
Formula
C4H10Se
Molar mass
137.08 g/mol
EC number
628-361-5
HS code
293190

What is Selenide, diethyl-?

Plain description, key identifiers and synonyms

Selenide, diethyl- is a chemical substance with the molecular formula C4H10Se and a molar mass of 137.08 g/mol. Its CAS registry number is 627-53-2. The IUPAC name is ethylselanylethane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethylselanylethane
CAS number
627-53-2 CAS number cross-checked
EC number
628-361-5
Molecular formula
C4H10Se
MDL number
MFCD00015103
InChIKey
ALCDAWARCQFJBA-UHFFFAOYSA-N
InChI
InChI=1S/C4H10Se/c1-3-5-4-2/h3-4H2,1-2H3
SMILES (canonical and isomeric)
CC[Se]CC

Synonyms

  • Diethyl selenide
  • Diethylselenide
  • Diethylselenium
  • Ethane, 1,1'-selenobis-
  • TL 264
  • 4-01-00-01411 (Beilstein Handbook Reference)
  • ethylselanylethane
  • Ethyl selenide
  • Diethyl selenide, 99.999% trace metals basis
  • Diethyl selenium
  • (ethylselanyl)ethane
  • Diethyl monoselenide
  • 1-(Ethylselanyl)ethane #
  • (C2H5)2Se
  • Alcdawarcqfjba-uhfffaoysa-

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
137.08 g/molcalc.
Exact mass
137.9948 Dacalc.
LogP (octanol/water)
1.57calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
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)
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H225Highly flammable liquid and vapour.
  • 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 (26)
  • 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.
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • 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.
  • P316Get emergency medical help immediately.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P391Collect spillage.
  • 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

Selenide, diethyl- suppliers

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

Frequently asked questions

Quick answers about Selenide, diethyl-, based on the data on this page

What is Selenide, diethyl-?

Selenide, diethyl- is a chemical substance with the molecular formula C4H10Se and a molar mass of 137.08 g/mol. Its CAS registry number is 627-53-2. The IUPAC name is ethylselanylethane.

What is the CAS number of Selenide, diethyl-?

The CAS registry number of Selenide, diethyl- is 627-53-2.

What is the molecular formula and weight of Selenide, diethyl-?

The molecular formula of Selenide, diethyl- is C4H10Se and its molar mass is 137.08 g/mol.

Is Selenide, diethyl- hazardous?

Selenide, diethyl- carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, toxic if swallowed, toxic if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Selenide, diethyl-?

Selenide, diethyl- 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 Selenide, diethyl-?

CompoundList lists 1 supplier of Selenide, diethyl- in 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 Selenide, diethyl-?

Suppliers quote Selenide, diethyl- 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 Selenide, diethyl-

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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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