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Emollients

Oleic acid

Also known as cis-9-Octadecenoic acid, (Z)-Octadec-9-enoic acid, Wecoline OO

CAS 112-80-1Formula C18H34O2Molar mass 282.47 g/molEC 204-007-1
GHS signal word: Warning. Pictograms: Harmful or irritant 346 suppliers listed
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Oleic acid chemical structure, C18H34O2, CAS 112-80-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless or nearly colorless liq (above 5-7 °C)
Melting point
16.3 °C
Boiling point
360 °C
Density
Relative density (water = 1): 0.89
Flash point
198.9 to 218.3
HS code
382312
Category
Emollients
Illustrative photo, clear colourless liquid in a glass reagent bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Oleic acid?

Plain description, key identifiers and synonyms

Oleic acid is an octadec-9-enoic acid in which the double bond at C-9 has Z (cis) stereochemistry. It has a role as an antioxidant, a solvent, a mouse metabolite, a plant metabolite, an Escherichia coli metabolite, an EC 3.1.1.1 (carboxylesterase) inhibitor and a Daphnia galeata metabolite. It is a conjugate acid of an oleate. It derives from a hydride of a cis-octadec-9-ene.

Oleic acid is a monounsaturated omega-9 fatty acid, abbreviated with a lipid number of 18:1 cis-9.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(Z)-octadec-9-enoic acid
CAS number
112-80-1 CAS number cross-checkedOther or deprecated CAS: 100402-66-2, 90459-83-9, 90459-84-0, 90459-85-1, 90459-86-2, 93925-19-0, 99148-48-8
EC numbers
204-007-1, 291-730-0, 291-731-6, 291-732-1, 291-733-7, 300-319-8, 308-954-2
Molecular formula
C18H34O2
UNII
2UMI9U37CP
MDL number
MFCD00064242
INCI name
OLEIC ACID
InChIKey
ZQPPMHVWECSIRJ-KTKRTIGZSA-N
InChI
InChI=1S/C18H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h9-10H,2-8,11-17H2,1H3,(H,19,20)/b10-9-
Canonical SMILES
CCCCCCCCC=CCCCCCCCC(=O)O
Isomeric SMILES
CCCCCCCC/C=C\CCCCCCCC(=O)O

Synonyms

  • cis-9-Octadecenoic acid
  • (Z)-Octadec-9-enoic acid
  • Wecoline OO
  • Vopcolene 27
  • cis-Oleic acid
  • Glycon wo
  • Glycon RO
  • Oelsauere
  • Pamolyn 100
  • Elaidoic acid
  • Groco 5l
  • Oleinic acid
  • Groco 2
  • Groco 4
  • Groco 6
  • Tego-oleic 130
  • Emersol 211
  • Pamolyn
  • cis-Octadec-9-enoic acid
  • Industrene 105
  • Industrene 205
  • Industrene 206
  • Z-9-Octadecenoic acid
  • 9-Octadecenoic acid (Z)-
  • L'Acide oleique
Show all 39 synonyms
  • Emersol 210
  • Emersol 213
  • 9Z-Octadecenoic acid
  • Emersol 6321
  • Extraolein 90
  • Oleine 7503
  • Emersol 205
  • Emersol 233LL
  • 9-Octadecenoic acid (9Z)-
  • 9-Octadecenoic acid, (Z)-
  • Priolene 6906
  • White oleic acid
  • Wochem no. 320
  • Extra Oleic 80R

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

Appearance
Colorless or nearly colorless liq (above 5-7 °C)exp.
Odour
PECULIAR LARD-LIKE ODORexp.
Taste
PECULIAR LARD-LIKE TASTEexp.
Melting point
16.3 °Cexp.
Boiling point
360 °Cexp.
Density
Relative density (water = 1): 0.89exp.
Flash point
198.9 to 218.3exp.
Autoignition temperature
363 °Cexp.
Solubility
Practically insol in water, sol in chloroform, ether, fixed & volatile oils, alcohol, benzeneexp.
Vapour pressure
5.46 × 10⁻⁷ mm Hg at 25 °Cexp.

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
282.47 g/molcalc.
Exact mass
282.2559 Dacalc.
LogP (octanol/water)
6.11calc.
Topological polar surface area
37.3 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
15calc.
Heavy atoms
20calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.83calc.
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
Warning
GHS07: Harmful or irritant
Harmful or irritant
110NFPA 704 rating

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
Precautionary statements (9)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.

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

Oleic acid suppliers

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

All 346 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

346 suppliers in 46 countries

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Oleic acid 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

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.".

Prepn of turkey red oil, soft soap and other oleates, used in polishing cmpd, waterproofing textiles, in oiling wool, mfr driers, thickening lubricating oils. Pharmaceutical aid (solvent). The barium salt in rodent extermination.

Defoaming agent in wet-process phosphoric acid process.

Industrial uses: Viscosity modifiers, Soil amendments (fertilizers), Intermediate, Pigment, Anti-static agent, Softener and conditioner, Surface modifier.

Consumer uses: Lubricating agent, Binder, Fuel agents, Emulsifier, Soil amendments (fertilizers), Softener and conditioner, Intermediate.

Use classes: Surfactants, Safer Chemical Classes, Cosmetics.

Cosmetic ingredient, INCI name OLEIC ACID(skin conditioning - emollient, surfactant - emulsifying)

Roles

  • Daphnia galeata metabolite
  • Daphnia metabolite
  • Escherichia coli metabolite
  • animal metabolite
  • antineoplastic agent
  • antioxidant
  • bacterial metabolite
  • crustacean metabolite
  • enzyme inhibitor
  • eukaryotic metabolite
  • immunomodulator
  • immunosuppressive agent
  • mammalian metabolite
  • metabolite
  • mouse metabolite
  • pharmaceutical
  • plant metabolite
  • prokaryotic metabolite
  • solvent

Functional uses

  • Binder
  • Cleaning agent
  • Defoamer
  • Dispersing agent
  • Emulsifier
  • Fragrance
  • Lubricating agent
  • Softener and conditioner
  • Solubility enhancer
  • Solvent
  • Surfactant (surface active agent)
  • pH regulating agent

Cosmetic functions

  • Skin conditioning - emollient
  • Surfactant - emulsifying

How it is made

Hydrolytic splitting of tallow, followed by fractional distillation and solvent crystallization

Obtained by hydrolysis of various animal and vegetable fats and oils. ... Separation from olive oil by double fractionation via urea adducts.

Derived from hydrolysis & distillation of triolein.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • Safer Choice ingredient list (USA)
  • 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 Oleic acid is traded under.

HS 3823.12Exact HS code

Industrial monocarboxylic fatty acids, acid oils from refining: oleic acid

World exports in 2024
$565M
+12.7% vs 2023, imports $592M
2019 to 2024
Top exporters
  1. Malaysia36.1%
  2. Indonesia32.1%
  3. Belgium8.7%
Top importers
  1. China10.1%
  2. United States8.9%
  3. Netherlands8.9%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Oleic acid is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Oleic acid, based on the data on this page

What is Oleic acid?

Oleic acid is an octadec-9-enoic acid in which the double bond at C-9 has Z (cis) stereochemistry. It has a role as an antioxidant, a solvent, a mouse metabolite, a plant metabolite, an Escherichia coli metabolite, an EC 3.1.1.1 (carboxylesterase) inhibitor and a Daphnia galeata metabolite.

What is the CAS number of Oleic acid?

The CAS registry number of Oleic acid is 112-80-1. Other or deprecated CAS numbers: 100402-66-2, 90459-83-9, 90459-84-0.

What is the molecular formula and weight of Oleic acid?

The molecular formula of Oleic acid is C18H34O2 and its molar mass is 282.47 g/mol.

What is Oleic acid used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". Prepn of turkey red oil, soft soap and other oleates, used in polishing cmpd, waterproofing textiles, in oiling wool, mfr driers, thickening lubricating oils. Pharmaceutical aid (solvent).

Is Oleic acid hazardous?

Oleic acid carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Oleic acid?

Oleic acid is usually classified under HS code 382312 (Oleic acid). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Oleic acid?

CompoundList lists 346 suppliers of Oleic acid in United States, China, India, Germany and 42 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Oleic acid in India?

51 suppliers in India list Oleic acid on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Oleic acid?

Suppliers quote Oleic acid 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 Oleic acid

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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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