CompoundList

3-Octadecanone

Also known as Octadecan-3-one, Ethyl pentadecyl ketone, Aethylpentadecylketon

CAS 18261-92-2Formula C18H36OMolar mass 268.49 g/molEC 242-132-3
3-Octadecanone chemical structure, C18H36O, CAS 18261-92-2
2D chemical structure

Key facts

What buyers check first

CAS number
18261-92-2
Formula
C18H36O
Molar mass
268.49 g/mol
EC number
242-132-3
HS code
291419
Category
Aliphatic and alicyclic building blocks

What is 3-Octadecanone?

Plain description, key identifiers and synonyms

octadecan-3-one has been reported in Cochlospermum tinctorium.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
octadecan-3-one
CAS number
18261-92-2 CAS number cross-checked
EC number
242-132-3
Molecular formula
C18H36O
UNII
6E54YCX3QT
InChIKey
LMCGARAPKXJPNG-UHFFFAOYSA-N
InChI
InChI=1S/C18H36O/c1-3-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)4-2/h3-17H2,1-2H3
SMILES (canonical and isomeric)
CCCCCCCCCCCCCCCC(=O)CC

Synonyms

  • Octadecan-3-one
  • Ethyl pentadecyl ketone
  • Aethylpentadecylketon

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
268.49 g/molcalc.
Exact mass
268.2766 Dacalc.
LogP (octanol/water)
6.45calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
15calc.
Heavy atoms
19calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.94calc.
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.

3-Octadecanone suppliers

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3-Octadecanone 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

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 3-Octadecanone is traded under.

HS 2914.19Indicative HS code

Acyclic ketones without other oxygen function, other

World exports in 2024
$264M
+1.7% vs 2023, imports $308M
2019 to 2024
Top exporters
  1. China27.1%
  2. United States27.0%
  3. Germany10.5%
Top importers
  1. China22.8%
  2. United States13.0%
  3. India * partner reported10.7%

* Partner reported figures, a lower bound.

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

The HS code shown for 3-Octadecanone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 3-Octadecanone, based on the data on this page

What is 3-Octadecanone?

octadecan-3-one has been reported in Cochlospermum tinctorium.

What is the CAS number of 3-Octadecanone?

The CAS registry number of 3-Octadecanone is 18261-92-2.

What is the molecular formula and weight of 3-Octadecanone?

The molecular formula of 3-Octadecanone is C18H36O and its molar mass is 268.49 g/mol.

What is 3-Octadecanone used for?

Known uses and roles of 3-Octadecanone include building blocks in research and laboratory.

Is 3-Octadecanone hazardous?

No GHS hazard classification for 3-Octadecanone 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 3-Octadecanone?

3-Octadecanone is usually classified under HS code 291419 (Acyclic ketones without other oxygen function, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 3-Octadecanone?

Post a free request on CompoundList and suppliers of 3-Octadecanone will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 3-Octadecanone?

Suppliers quote 3-Octadecanone 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 3-Octadecanone

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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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