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Octadecyl Alcohol

CAS No.
112-92-5
Chemical Name:
Octadecyl Alcohol
Synonyms
STEARYL ALCOHOL;Ceteareth-20;OCTADECANOL;Octadecan-1-ol;stearyl;Stenol;STEARYLIC ALCOHOL;1-Hydroxyoctadecane;Stearol;n-Octadecanol
CBNumber:
CB00124276
Molecular Formula:
C18H38O
Molecular Weight:
270.49
MDL Number:
MFCD00002823
MOL File:
112-92-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-06-24 18:39:39
Product description Number Pack Size Price
Stearyl alcohol European Pharmacopoeia (EP) Reference Standard S1350000 250 mg $254
Stearyl alcohol for synthesis 8.07680 100g $46.3
Stearyl alcohol for synthesis 8.07680 1kg $70
1-Octadecanol ReagentPlus , 99% 258768 5g $66.9
Stearyl alcohol United States Pharmacopeia (USP) Reference Standard 1622000 125mg $402
More product size

Octadecyl Alcohol Properties

Melting point 56-59 °C (lit.)
Boiling point 210 °C15 mm Hg
Density 0.812 g/mL at 25 °C (lit.)
bulk density 300kg/m3
vapor density 9.3 (vs air)
vapor pressure <0.01 mm Hg ( 38 °C)
refractive index 1.4356 (estimate)
FLAVIS Number 02.196 | Octadecan-1-ol
Flash point 185°C
storage temp. 2-8°C
solubility methanol: soluble10mg/mL, clear, colorless
form Flakes
pka 15.20±0.10(Predicted)
Specific Gravity 0.812
color White
Odor wh. unctuous flakes or gran., faint odor, bland taste
Viscosity 4.006mm2/s
explosive limit ~8%
Water Solubility insoluble
Merck 14,8805
BRN 1362907
Henry's Law Constant 1.2×10-2 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
Dielectric constant 3.4(58℃)
Cosmetics Ingredients Functions SURFACTANT - CLEANSING
SURFACTANT - EMULSIFYING
FRAGRANCE
OPACIFYING
REFATTING
EMULSION STABILISING
SKIN CONDITIONING - EMOLLIENT
VISCOSITY CONTROLLING
SURFACTANT - FOAM BOOSTING
Cosmetic Ingredient Review (CIR) 1-Octadecanol (112-92-5)
InChI 1S/C18H38O/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19/h19H,2-18H2,1H3
InChIKey GLDOVTGHNKAZLK-UHFFFAOYSA-N
SMILES CCCCCCCCCCCCCCCCCCO
LogP 7.4
CAS DataBase Reference 112-92-5(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) STEARYL ALCOHOL
FDA 21 CFR 175.300; 176.180; 176.200;176.210; 177.1200; 177.1390;178.3480
EWG's Food Scores 1-3
FDA UNII 2KR89I4H1Y
NIST Chemistry Reference 1-Octadecanol(112-92-5)
EPA Substance Registry System 1-Octadecanol (112-92-5)
Cosmetics Info Stearyl Alcohol
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P305+P351+P338
Safety Statements  24/25
RIDADR  UN 1986
WGK Germany  -
RTECS  RG2010000
Autoignition Temperature 842 °F
TSCA  TSCA listed
HS Code  29051700
Storage Class 11 - Combustible Solids
Hazardous Substances Data 112-92-5(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: > 2000 mg/kg
REACH Registrations Active
NFPA 704
0
0 0

Octadecyl Alcohol price More Price(63)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich S1350000 Stearyl alcohol European Pharmacopoeia (EP) Reference Standard 112-92-5 250 mg $254 2026-04-30 Buy
Sigma-Aldrich 8.07680 Stearyl alcohol for synthesis 112-92-5 100g $46.3 2026-04-30 Buy
Sigma-Aldrich 8.07680 Stearyl alcohol for synthesis 112-92-5 1kg $70 2026-04-30 Buy
Sigma-Aldrich 258768 1-Octadecanol ReagentPlus , 99% 112-92-5 5g $66.9 2026-04-30 Buy
Sigma-Aldrich 1622000 Stearyl alcohol United States Pharmacopeia (USP) Reference Standard 112-92-5 125mg $402 2026-04-30 Buy
Product number Packaging Price Buy
S1350000 250 mg $254 Buy
8.07680 100g $46.3 Buy
8.07680 1kg $70 Buy
258768 5g $66.9 Buy
1622000 125mg $402 Buy

Octadecyl Alcohol Chemical Properties,Uses,Production

Uses

Octadecyl Alcohol is used in the synthesis of O-octadecyl-S-trifluorothiolcarbonate, which is a storable crystalline source of trifluoromethanethiol.
It can be used to improve solution processability of conjugated polymers used in the organic electronic applications. It induces hydrophobicity to the amphiphiles used in the drug and gene delivery.
It is also employed in the synthesis of solid-liquid phase change materials (PCMs), surfactant and stabilizers.
When used in the formulation of skin care products, Stearyl Alcohol, Oleyl Alcohol and Octyldodecanol act as a lubricants on the skin surface, which gives the skin a soft, smooth appearance.

Definition

Octadecyl Alcohol 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 a long-chain primary fatty alcohol and an octadecanol.

111-61-5
112-92-5
Synthesis of Octadecyl Alcohol from ETHYL STEARATE
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Octadecanol, 1- Octadecyl alcohol, Stearyl alcohol 1-Octadecanol,Octadecyl alcohol, Stearyl alcohol Stearyl alcohol, synthesis grade Stearyl alcohol, extra pure, Ph Eur, USP Stearyl Alcohol (125 mg) n-OCTADECYL ALCOHOL, TECH Ecorol 18/98: Stearyl Alcohol Pastilles 1-Octadecanol, 95% 1KG Octodecylalcohol Philcohol 1800 Polaax Rita SA Sipol S sipols Siponol S Siponol SC siponols siponolsc Stearal Stearyl alcohol NF Stearyl alcohol USP Stenol Steraffine Usp XIII stearyl alcohol uspxiiistearylalcohol Varonic BG Stearyl Alcohol Octadecyl Alcohol 1-Octadecanol 95% Adol62 1-Octadecanol,95% STEARYL ALCOHOL FOR SYNTHESIS STEARYL ALCOHOL(OCTADECANOL)(SG) C1899 1-Octadecanol ReagentPlus(R), 99% 1-Octadecanol Vetec(TM) reagent grade, 94% STEARYL ALCOHOL PS STEARYL ALCOHOL 99% OCTADECYL ALCOHOL N-OCTADECYL ALCOHOL 1-OCTADECANOL ALCOHOL C18 Octadecanol-[1], Stanol ALKOHOL C 18 (OCTADECANOL) [Stearylalkohol] Stearol StearylAlcoholPure 1-Octadecanol,>99% STEARYL ALCOHOL (1-OCTADECANOL ) stearylalcohol,octadecanol STEARYL ALCOHOL GC STANDARD C18 Alcohol 1-Octadecanol (Standard for GC,>99.5%) Adol 62 NF Adol 68 adol68 Aldol 62 aldol62 Alfol 18