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Safety data summary

Stearyl Alcohol

  • CAS 112-92-5
  • C18H38O
  • EC 204-017-6
  • Warning

Stearyl Alcohol (CAS 112-92-5) is a chemical substance with the molecular formula C18H38O and a molecular weight of 270.5 g/mol. Based on GHS classifications notified to ECHA, it carries the signal word “Warning” and is classified as an irritant and hazardous to aquatic life. Its label shows the Exclamation Mark and Environment pictograms. Key hazard statements include H319 (causes serious eye irritation), H400 (very toxic to aquatic life), and H411 (toxic to aquatic life with long lasting effects).

Hazards at a glance

  • H319Causes serious eye irritation · 23.1% of notifications
  • H400Very toxic to aquatic life · 15% of notifications
  • H411Toxic to aquatic life with long lasting effects · 15.4% of notifications
  • H412Harmful to aquatic life with long lasting effects · 15% of notifications

European Chemicals Agency (ECHA) — aggregated from 1,921 company reports

This is a reference summary, not a manufacturer SDS. Classifications differ between suppliers, concentrations and mixtures. Always use the SDS that came with your product. Have one you want explained? Upload it to the AI SDS analyzer.

1Identification

Name
Stearyl Alcohol
IUPAC name
octadecan-1-ol
CAS number
112-92-5 (also reported: 68911-61-5, 26762-44-7)
EC number
204-017-6
Molecular formula
C18H38O
Molecular weight
270.5 g/mol
InChIKey
GLDOVTGHNKAZLK-UHFFFAOYSA-N
SMILES
CCCCCCCCCCCCCCCCCCO
PubChem CID
8221
Synonyms
Stearyl alcohol, Octadecan-1-ol, 1-Hydroxyoctadecane, Octadecyl alcohol, n-Octadecanol, Stearol, Stearic alcohol, n-Octadecyl alcohol, Atalco S, n-1-Octadecanol, Steraffine, Alfol 18, Sipol S, Alcohol stearylicus

Recommended uses

  • CIR ingredient: Stearyl Alcohol
    Cosmetic Ingredient Review (CIR)
  • Used as a substitute for cetyl alcohol in pharmaceutical dispensing; in cosmetic creams and perfumery; in textile oils and finishes; as an antifoam agent; and in lubricants, resins, and surface active agents; Synthetic stearyl alcohol has been approved as a direct and indirect food additive ingredient and as an ingredient in over-the-counter drugs; [HSDB]
    Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
    Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Defoamer Intermediate Emulsifier Not Known or Reasonably Ascertainable Stabilizing agent Sealant (barrier) Cleaning agent Fuel Antioxidant Surfactant (surface active agent) Lubricating agent Other Binder Solvent
    EPA Chemical Data Reporting (CDR)
  • Cleaning agent Not Known or Reasonably Ascertainable Emulsifier Softener and conditioner Solvent Other Binder Lubricating agent Surfactant (surface active agent) Fuel
    EPA Chemical Data Reporting (CDR)

Use categories: EPA Safer Chemical Functional Use Classes -> Emollients · Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern · Cosmetics -> Foam boosting; Refatting; Opacifying; Emollient; Viscosity controlling; Emulsion stabilizing

Description

  • Octadecan-1-ol is a long-chain primary fatty alcohol consisting of a hydroxy function at C-1 of an unbranched saturated chain of 18 carbon atoms. It has a role as a plant metabolite, a human metabolite and an algal metabolite. It is an octadecanol and a long-chain primary fatty alcohol.
    ChEBI
  • stearyl alcohol has been reported in Camellia sinensis, Apis, and other organisms with data available.
    LOTUS - the natural products occurrence database
  • See also: Lipotox (FDA NDC: 43857-0636) (component of); Chemstat (FDA NDC: 44911-0556) (component of); Moringa oleifera leaf oil (part of) ... View More ...
    PubChem

2Hazard identification

Signal word
Warning
Pictograms
GHS07, GHS09
Classification source
European Chemicals Agency (ECHA)

Precautionary statements

CodeStatement
P264+P265Wash hands [and ...] thoroughly after handling. Do not touch eyes.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing.
P337+P317If eye irritation persists: Get medical help.
P391Collect spillage.
P501Dispose of contents/container to ...

NFPA 704 rating

  • 0 - Materials that, under emergency conditions, would offer no hazard beyond that of ordinary combustible materials.
    Hazardous Substances Data Bank (HSDB)
  • 0 - Materials that will not burn under typical fire conditions, including intrinsically noncombustible materials such as concrete, stone, and sand.
    Hazardous Substances Data Bank (HSDB)
  • 0 - Materials that in themselves are normally stable, even under fire conditions.
    Hazardous Substances Data Bank (HSDB)

Fire hazards

  • Combustible.
    ILO-WHO International Chemical Safety Cards (ICSCs)

Hazards summary

  • Higher alcohols are not highly toxic in the industrial setting; Can cause liver injury, somnolence, and respiratory depression in experimental animals; [HSDB] Causes somnolence in lethal-dose feeding studies of rats; [RTECS] No listed effects of short-term or long-term exposure; Health effects of exposure to the substance have been investigated extensively but none have been found. [ICSC] An irritant; [MSDSonline]
    Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

3Composition / information on ingredients

SubstanceCASECFormula
Stearyl Alcohol112-92-5204-017-6C18H38O

This page describes the pure substance. Commercial products may be solutions or mixtures. Check Section 3 of your supplier's SDS for concentrations and other ingredients.

4First-aid measures

Not available in the public sources we compile. Check Section 4 of the supplier's SDS.

5Fire-fighting measures

  • To fight fire use foam, carbon dioxide, dry chemical.
    Hazardous Substances Data Bank (HSDB)

6Accidental release measures

Spill cleanup

  • Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations.
    ILO-WHO International Chemical Safety Cards (ICSCs)
  • Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place.
    Hazardous Substances Data Bank (HSDB)

7Handling and storage

  • Separated from strong oxidants and strong acids.
    ILO-WHO International Chemical Safety Cards (ICSCs)

8Exposure controls / personal protection

No occupational exposure limits found in our sources.

9Physical and chemical properties

Molecular weight270.5 g/mol
Physical description
Large Crystals; Liquid; Other Solid; Liquid; Other Solid; Dry Powder; Large Crystals EPA Chemical Data Reporting (CDR)
White solid; [Hawley] Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Color / form
Leaflets from ethanol Hazardous Substances Data Bank (HSDB)
Unctuous white flakes or granules Hazardous Substances Data Bank (HSDB)
Odor
Faint Hazardous Substances Data Bank (HSDB)
Boiling point
210.5 °C at 15 mm Hg Hazardous Substances Data Bank (HSDB)
336 °C ILO-WHO International Chemical Safety Cards (ICSCs)
202 °C @760 [mm Hg] PAC Chemical Database, U.S. Department of Energy
Melting point
59.5 °C Hazardous Substances Data Bank (HSDB)
Heat of fusion at melting point = 7.4057X10+7 J/kmol (for the gamma phase, no selection of the alpha phase, crystal I can be made). Hazardous Substances Data Bank (HSDB)
59.8 °C ILO-WHO International Chemical Safety Cards (ICSCs)
Flash point
200 °C Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
392 °F (200 °C) (Closed cup) Hazardous Substances Data Bank (HSDB)
170 °C ILO-WHO International Chemical Safety Cards (ICSCs)
Autoignition temperature
842 °F (450 °C) Hazardous Substances Data Bank (HSDB)
450 °C ILO-WHO International Chemical Safety Cards (ICSCs)
Density / specific gravity
0.8124 at 59 °C/4 °C Hazardous Substances Data Bank (HSDB)
Relative density (water = 1): 0.81 (liquid) ILO-WHO International Chemical Safety Cards (ICSCs)
Vapor pressure
0.0000027 [mmHg] Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Vapor pressure = 0.1 mm Hg @ 125 °C Hazardous Substances Data Bank (HSDB)
Solubility
Soluble in alcohol, ether, benzene, acetone Hazardous Substances Data Bank (HSDB)
Soluble in chloroform; slightly soluble in acetone, benzene Hazardous Substances Data Bank (HSDB)
In water, 1.1X10-3 mg/L at 25 °C Hazardous Substances Data Bank (HSDB)
log Kow (LogP)
8.22 ILO-WHO International Chemical Safety Cards (ICSCs)
Decomposition
When heated to decomposition it emits acrid smoke and fumes. Hazardous Substances Data Bank (HSDB)

10Stability and reactivity

Incompatible materials and hazardous reactions

  • Reacts with strong acids and strong oxidants.
    Hazardous Substances Data Bank (HSDB)

11Toxicological information

Not available in the public sources we compile. Check Section 11 of the supplier's SDS.

12Ecological information

Environmental fate

  • 1-Octadecanol's production and use as a substitute for 1-hexadecanol in pharmaceutical dispensing, in cosmetic creams, for emulsions, textile oils and finishes, as an antifoam agent, lubricant, chemical raw material, in perfumery, cosmetics, as an intermediate, surface active agent, and in resins may result in its release to the environment through various waste streams. If released to air, a vapor pressure of 2.7X10-6 mm Hg at 25 °C indicates 1-octadecanol will exist in both the vapor and particulate phases in the atmosphere. Vapor-phase 1-octadecanol will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals;
    Hazardous Substances Data Bank (HSDB)

13Disposal considerations

  • SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.
    Hazardous Substances Data Bank (HSDB)

14Transport information

Not available in the public sources we compile. Check Section 14 of the supplier's SDS.

How DOT hazard classes work →

15Regulatory information

  • Drug products containing certain active ingredients offered over-the-counter (OTC) for certain uses. A number of active ingredients have been present in OTC drug products for various uses, as described below. However, based on evidence currently available, there are inadequate data to establish general recognition of the safety and effectiveness of these ingredients for the specified uses: Stearyl alcohol is included in skin protectant drug products.
    Hazardous Substances Data Bank (HSDB)

Overview of SDS regulations (OSHA HazCom, WHMIS, REACH/CLP) →

16Other information

Compiled from PubChem CID 8221 and the sources it aggregates (attributed inline). Data retrieved 2026-10-12. This summary describes the pure substance and is not a supplier SDS.

Frequently asked questions about Stearyl Alcohol

What is the CAS number for Stearyl Alcohol?

The CAS Registry Number for Stearyl Alcohol is 112-92-5. Its EC (EINECS) number is 204-017-6.

Is Stearyl Alcohol hazardous?

Yes. Stearyl Alcohol is classified under GHS with the signal word “Warning”. Hazard statements: H319: Causes serious eye irritation; H400: Very toxic to aquatic life; H411: Toxic to aquatic life with long lasting effects; H412: Harmful to aquatic life with long lasting effects.

Is Stearyl Alcohol flammable?

Stearyl Alcohol is not classified as flammable under its primary GHS classification, but a flash point of 200 °C has been reported, so it can burn under some conditions.

Which GHS pictograms apply to Stearyl Alcohol?

Stearyl Alcohol labels carry GHS07 (Exclamation Mark) and GHS09 (Environment).

How should Stearyl Alcohol be stored?

Separated from strong oxidants and strong acids.