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Stearic acid amide

Also known as Octadecanamide, Stearamide, Octadecamide

CAS 124-26-5Formula C18H37NOMolar mass 283.50 g/molEC 204-693-2
Stearic acid amide chemical structure, C18H37NO, CAS 124-26-5
2D chemical structure

Key facts

What buyers check first

Appearance
Leaflets from alcohol
Melting point
107 °C
Boiling point
250 °C
Solubility
Insoluble in water
HS code
292419
Category
Cleansing surfactants
Illustrative photo, 25 kg white woven sacks of powder on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Stearic acid amide?

Plain description, key identifiers and synonyms

Octadecanamide is a fatty amide of stearic acid. It has a role as a metabolite. It is functionally related to an octadecanoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
octadecanamide
CAS number
124-26-5 CAS number cross-checked
EC number
204-693-2
Molecular formula
C18H37NO
UNII
YQX129FH1U
MDL number
MFCD00008038
INCI name
STEARAMIDE
InChIKey
LYRFLYHAGKPMFH-UHFFFAOYSA-N
InChI
InChI=1S/C18H37NO/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H2,19,20)
SMILES (canonical and isomeric)
CCCCCCCCCCCCCCCCCC(=O)N

Synonyms

  • Octadecanamide
  • Stearamide
  • Octadecamide
  • Octadecylamide
  • Stearylamide
  • Kemamide S
  • Stearoylamide
  • Stearoylamine
  • Stearic amide
  • Adogen 42
  • Oristar sta
  • Stearamide (stearic acid amide)
  • Crodamide S
  • Amide T
  • Amide C18
  • Armid 18
  • Petrac vyn-eze
  • Octadecanoic acid amide
  • Stearamide, Stearlyamide, Stearic Acid Amide, Octadecylamide
  • Crodamide SR
  • Crodamide S, SR
  • Amide C-18
  • Octadecanamide, technical grade, 85%
  • Stearamide Solution in Methanol, 100ug/mL
  • Stearamide Solution in Methanol, 1000ug/mL
Show all 26 synonyms
  • Fatty acid amide pound Contains C16, C18 amides pound(c)

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
Leaflets from alcoholexp.
Melting point
107 °Cexp.
Boiling point
250 °Cexp.
Solubility
Insoluble in waterexp.

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
283.50 g/molcalc.
Exact mass
283.2875 Dacalc.
LogP (octanol/water)
5.73calc.
Topological polar surface area
43.09 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
16calc.
Heavy atoms
20calc.
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

GHS classification
Hazard pictograms

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

Stearic acid amide suppliers

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Where suppliers are based

22 suppliers in 8 countries

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Stearic acid amide 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

Corrosion inhibitor in oil wells.

Industrial uses: Anti-adhesive agents, Lubricants and lubricant additives, Plating agents and surface treating agents, Processing aids, Viscosity adjustors Consumer uses: Building/Construction Materials, Food Packaging, Fuels and Related Products, Plastic and Rubber Products.

Chemical intermediate for textile waterproofing agents.

Plastics -> Typical concentration range in plastic materials -> 0.2 - 3.0%.

Industrial uses: Lubricating agent, Anti-adhesive/cohesive, Anti-slip agent.

Consumer uses: Stabilizing agent, Lubricating agent, Anti-adhesive/cohesive.

Use classes: Plastics, Cosmetics.

Cosmetic ingredient, INCI name STEARAMIDE(surfactant - foam boosting, opacifying, viscosity controlling)

Roles

  • metabolite

Functional uses

  • Anti-adhesive/cohesive
  • Catalyst
  • Foamant
  • Lubricating agent
  • Opacifer
  • Viscosity modifier
  • Wetting agent (non-aqueous)

Cosmetic functions

  • Opacifying
  • Surfactant - foam boosting
  • Viscosity controlling

How it is made

Reaction of ammonia with stearic acid (with temperature control to minimize stearonitrile formation)

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 Stearic acid amide is traded under.

HS 2924.19Indicative HS code

Acyclic amides (including acyclic carbamates) and their derivatives, salts thereof, other

World exports in 2024
$2.38B
−1.7% vs 2023, imports $2.22B
2019 to 2024
Top exporters
  1. China34.7%
  2. Germany12.5%
  3. India * partner reported6.8%
Top importers
  1. United States17.5%
  2. Germany8.8%
  3. India * partner reported6.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Stearic acid amide, based on the data on this page

What is Stearic acid amide?

Octadecanamide is a fatty amide of stearic acid. It has a role as a metabolite. It is functionally related to an octadecanoic acid.

What is Stearic acid amide used for?

Corrosion inhibitor in oil wells. Industrial uses: Anti-adhesive agents, Lubricants and lubricant additives, Plating agents and surface treating agents, Processing aids, Viscosity adjustors Consumer uses: Building/Construction Materials, Food Packaging, Fuels and Related Products, Plastic and Rubber Products.

Guides for buyers

Practical guides that help when you source, ship or handle Stearic acid amide

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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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