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Thickeners and film formers

1-Octadecene

Also known as Octadec-1-ene, alpha-Octadecene, Octadecene

CAS 112-88-9Formula C18H36Molar mass 252.49 g/molEC 204-012-9
GHS signal word: Danger. Pictograms: Serious health hazard 23 suppliers listed
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1-Octadecene chemical structure, C18H36, CAS 112-88-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
112-88-9
Formula
C18H36
Molar mass
252.49 g/mol
Physical form
Liquid
HS code
290129
Category
Thickeners and film formers
Illustrative photo, 200 litre blue HDPE drums of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 1-Octadecene?

Plain description, key identifiers and synonyms

Octadec-1-ene is an octadecene with unsaturation at C-1.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
octadec-1-ene
CAS number
112-88-9 CAS number cross-checkedOther or deprecated CAS: 27070-58-2
EC numbers
204-012-9, 248-205-6
Molecular formula
C18H36
UNII
H5ZUQ6V4AK
MDL number
MFCD00009003
INCI name
OCTADECENE
InChIKey
CCCMONHAUSKTEQ-UHFFFAOYSA-N
InChI
InChI=1S/C18H36/c1-3-5-7-9-11-13-15-17-18-16-14-12-10-8-6-4-2/h3H,1,4-18H2,2H3
SMILES (canonical and isomeric)
CCCCCCCCCCCCCCCCC=C

Synonyms

  • Octadec-1-ene
  • alpha-Octadecene
  • Octadecene
  • Octadecene-1
  • 1-Octadecene, analytical standard
  • alpha-octadecylene
  • Octadecylene alpha-
  • 1-octadecen
  • octadeca-1-ene
  • Neodene 18
  • Octadecylene, alpha-
  • Octadecene, 1-
  • 1-Octadecene, >=95.0% (GC)
  • 1-Octadecene, technical grade, 90%
  • 1-Octadecene, technical, ~85% (GC)
  • 1-octadecene [standard material for 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

Physical form
Liquidexp.

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
252.49 g/molcalc.
Exact mass
252.2817 Dacalc.
LogP (octanol/water)
7.04calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
15calc.
Heavy atoms
18calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.89calc.
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

GHS signal word
Danger
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H304May be fatal if swallowed and enters airways.
Precautionary statements (4)
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P331Do not induce vomiting.
  • 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

1-Octadecene suppliers

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

All 23 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

23 suppliers in 6 countries

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1-Octadecene 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

Industrial uses: Intermediate, Waterproofing agent, Hydraulic fluids, Lubricating agent, Sizing agent, Other, Diluent.

Consumer uses: Sizing agent, Lubricating agent.

Cosmetic ingredient, INCI name OCTADECENE(solvent, viscosity controlling)

Functional uses

  • Solvent
  • Viscosity modifier

Cosmetic functions

  • Solvent
  • Viscosity controlling

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 1-Octadecene 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 1-Octadecene is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 1-Octadecene, based on the data on this page

What is 1-Octadecene?

Octadec-1-ene is an octadecene with unsaturation at C-1.

What is the CAS number of 1-Octadecene?

The CAS registry number of 1-Octadecene is 112-88-9. Other or deprecated CAS numbers: 27070-58-2.

What is the molecular formula and weight of 1-Octadecene?

The molecular formula of 1-Octadecene is C18H36 and its molar mass is 252.49 g/mol.

What is 1-Octadecene used for?

Industrial uses: Intermediate, Waterproofing agent, Hydraulic fluids, Lubricating agent, Sizing agent, Other, Diluent. Consumer uses: Sizing agent, Lubricating agent.

Is 1-Octadecene hazardous?

1-Octadecene carries the GHS signal word "Danger". Main hazards: may be fatal if swallowed and enters airways. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 1-Octadecene?

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

Where can I buy 1-Octadecene?

CompoundList lists 23 suppliers of 1-Octadecene in United States, China, Switzerland, Iran and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 1-Octadecene?

Suppliers quote 1-Octadecene 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 1-Octadecene

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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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