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Aliphatic and alicyclic building blocks

9-Eicosene, (E)-

Also known as (E)-icos-9-ene, 9-eicosene, icos-9-ene

CAS 74685-29-3Formula C20H40Molar mass 280.54 g/mol
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9-Eicosene, (E)- chemical structure, C20H40, CAS 74685-29-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
74685-29-3
Formula
C20H40
Molar mass
280.54 g/mol
HS code
290129
Category
Aliphatic and alicyclic building blocks

What is 9-Eicosene, (E)-?

Plain description, key identifiers and synonyms

(9E)-icos-9-ene has been reported in Streptomyces.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(E)-icos-9-ene
CAS number
74685-29-3Other or deprecated CAS: 42448-90-8
Molecular formula
C20H40
InChIKey
UVLKUUBSZXVVDZ-HTXNQAPBSA-N
InChI
InChI=1S/C20H40/c1-3-5-7-9-11-13-15-17-19-20-18-16-14-12-10-8-6-4-2/h17,19H,3-16,18,20H2,1-2H3/b19-17+
Canonical SMILES
CCCCCCCCC=CCCCCCCCCCC
Isomeric SMILES
CCCCCCCCCC/C=C/CCCCCCCC

Synonyms

  • (E)-icos-9-ene
  • 9-eicosene
  • icos-9-ene
  • (9E)-9-Eicosene
  • (9E)-9-Icosene #
  • QSPL 134

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
280.54 g/molcalc.
Exact mass
280.313 Dacalc.
LogP (octanol/water)
7.82calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
16calc.
Heavy atoms
20calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.9calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

9-Eicosene, (E)- suppliers

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9-Eicosene, (E)- 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

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 9-Eicosene, (E)- 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 9-Eicosene, (E)- is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 9-Eicosene, (E)-, based on the data on this page

What is 9-Eicosene, (E)-?

(9E)-icos-9-ene has been reported in Streptomyces.

What is the CAS number of 9-Eicosene, (E)-?

The CAS registry number of 9-Eicosene, (E)- is 74685-29-3. Other or deprecated CAS numbers: 42448-90-8.

What is the molecular formula and weight of 9-Eicosene, (E)-?

The molecular formula of 9-Eicosene, (E)- is C20H40 and its molar mass is 280.54 g/mol.

What is 9-Eicosene, (E)- used for?

Known uses and roles of 9-Eicosene, (E)- include building blocks in research and laboratory.

Is 9-Eicosene, (E)- hazardous?

No GHS hazard classification for 9-Eicosene, (E)- is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of 9-Eicosene, (E)-?

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

Where can I buy 9-Eicosene, (E)-?

Post a free request on CompoundList and suppliers of 9-Eicosene, (E)- will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 9-Eicosene, (E)-?

Suppliers quote 9-Eicosene, (E)- 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 9-Eicosene, (E)-

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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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