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Synthetic aroma chemicals

Decene

Also known as 2-Decene, (E)-, (E)-dec-2-ene, 2-Decene

CAS 25339-53-1Formula C10H20Molar mass 140.27 g/molEC 246-870-7
GHS signal word: Danger. Pictograms: Flammable, Serious health hazard, Hazardous to the environment 1 supplier listed
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Decene chemical structure, C10H20, CAS 25339-53-1
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Liquid
Melting point
-73 °C
Boiling point
170.6 °C
Density
0.7404 g/cm³ @ 20 °C /4-Decene/, 0.7401 g/cm³ @ 20 °C /5-Decene (E)/, 0.7445 g/cm³ @ 20…
Flash point
45 °C
HS code
290129
Category
Synthetic aroma chemicals
UN number
UN 1993
Illustrative photo, closed blue steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Decene?

Plain description, key identifiers and synonyms

Decene appears as a clear colorless liquid. Less dense than water. Insoluble in water. Used to make pharmaceuticals and other chemicals.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(E)-dec-2-ene
CAS number
25339-53-1 CAS number cross-checkedOther or deprecated CAS: 20063-97-2
EC number
246-870-7
Molecular formula
C10H20
InChIKey
YKNMBTZOEVIJCM-HWKANZROSA-N
InChI
InChI=1S/C10H20/c1-3-5-7-9-10-8-6-4-2/h3,5H,4,6-10H2,1-2H3/b5-3+
Canonical SMILES
CC=CCCCCCCC
Isomeric SMILES
CCCCCCC/C=C/C

Synonyms

  • 2-Decene, (E)-
  • (E)-dec-2-ene
  • 2-Decene
  • (E)-2-Decene
  • 2-Decene, (2E)-
  • (2E)-DEC-2-ENE
  • (2E)-2-Decene
  • (2E)-2-Decene #
  • (E)-2-C10H20

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
-73 °Cexp.
Boiling point
170.6 °Cexp.
Density
0.7404 g/cm³ @ 20 °C /4-Decene/, 0.7401 g/cm³ @ 20 °C /5-Decene (E)/, 0.7445 g/cm³ @ 20 °C /5-Decene (Z)/exp.
Flash point
45 °Cexp.
Solubility
Solubility in water: noneexp.
Vapour pressure
Vapor pressure, kPa at 20 °C: 0.227exp.

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
140.27 g/molcalc.
Exact mass
140.1565 Dacalc.
LogP (octanol/water)
3.92calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
6calc.
Heavy atoms
10calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.8calc.
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
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H226Flammable liquid and vapour.
  • H304May be fatal if swallowed and enters airways.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (16)
  • 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.
  • 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.
  • P331Do not induce vomiting.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P391Collect spillage.
  • 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 1993
Transport hazard class
3
Packing group
III

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

Decene 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

1 supplier in 1 country

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Decene price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Used in the organic synthesis of flavors, perfumes, pharmaceuticals, dyes, oils, and resins (1-Decene).

Functional uses

  • Solvent
  • Viscosity modifier

How it is made

The One-Step Ziegler Process involves the oligomerization of ethylene in the presence of trialkylaluminum at 180-220 °C and 140 atm.

The Two-Step Ziegler Process involves the oligomerization of ethylene in the presence of aluminum alkyls at 175-200 °C and 136-204 atm. Chain growth continues with the reaction of light olefins with the aluminum alkyls continuously fed in stoichiometric amounts.

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 Decene is traded under.

HS 2901.29Indicative HS code

Unsaturated, other

World exports in 2024
$2.65B
−3.2% vs 2023, imports $2.57B
2019 to 2024
Top exporters
  1. United States43.9%
  2. South Africa15.3%
  3. Qatar * partner reported9.0%
Top importers
  1. Singapore10.9%
  2. United States10.1%
  3. South Korea8.7%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Decene, based on the data on this page

What is Decene?

Decene appears as a clear colorless liquid. Less dense than water. Insoluble in water. Used to make pharmaceuticals and other chemicals.

What is the CAS number of Decene?

The CAS registry number of Decene is 25339-53-1. Other or deprecated CAS numbers: 20063-97-2.

What is the molecular formula and weight of Decene?

The molecular formula of Decene is C10H20 and its molar mass is 140.27 g/mol.

What is Decene used for?

Used in the organic synthesis of flavors, perfumes, pharmaceuticals, dyes, oils, and resins (1-Decene).

Is Decene hazardous?

Decene carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, may be fatal if swallowed and enters airways, very toxic to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Decene?

Decene is usually classified under HS code 290129 (Unsaturated, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Decene?

CompoundList lists 1 supplier of Decene in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Decene?

Suppliers quote Decene 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 Decene

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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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