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1-UNDECANOL

CAS No.
112-42-5
Chemical Name:
1-UNDECANOL
Synonyms
Undecan-1-ol;UNDECANOL;UNDECYL ALCOHOL;ALCOHOL C-11;FEMA 3097;ALCOHOL C-11 UNDECYLIC;n-Undecanol;Hendecyl alcohol;Tip-Nip;Neodol 1
CBNumber:
CB9311378
Molecular Formula:
C11H24O
Molecular Weight:
172.31
MDL Number:
MFCD00004751
MOL File:
112-42-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 06:28:56
Product description Number Pack Size Price
Undecyl alcohol 97%, FG W309702 1 each $58
Undecyl alcohol 97%, FG W309702 1kg $198
Undecyl alcohol 97%, FG W309702 8kg $948
1-Undecanol 99% U1001 100g $67.4
1-Undecanol 99% U1001 500g $285
More product size

1-UNDECANOL Properties

Melting point 11 °C (lit.)
Boiling point 146 °C/30 mmHg (lit.)
Density 0.83 g/mL at 25 °C (lit.)
vapor pressure <1 hPa (20 °C)
FEMA 3097 | UNDECYL ALCOHOL
refractive index n20/D 1.44(lit.)
FLAVIS Number 02.057 | Undecan-1-ol
Flash point >230 °F
storage temp. Store below +30°C.
solubility 0.0057g/l insoluble
form Liquid
pka 15.20±0.10(Predicted)
color Clear colorless to pale yellow
Odor Faint alcohol.
Viscosity 20.03mm2/s
Odor Type waxy
biological source synthetic
Water Solubility Not miscible or difficult to mix with water. Soluble in chloroform and ethyl acetate.
Thermal Conductivity 0.149 W/(m·K) at 25 ℃
JECFA Number 106
BRN 1698334
Henry's Law Constant 1.4×10-1 mol/(m3Pa) at 25℃, Brockbank (2013)
Dielectric constant 5.9800000000000004
Stability Stable. Combustible. Incompatible with strong oxidizing agents, strong acids.
Major Application flavors and fragrances
Cosmetics Ingredients Functions FRAGRANCE
SKIN CONDITIONING
SKIN CONDITIONING - EMOLLIENT
ANTI-SEBUM
VISCOSITY CONTROLLING
InChI 1S/C11H24O/c1-2-3-4-5-6-7-8-9-10-11-12/h12H,2-11H2,1H3
InChIKey KJIOQYGWTQBHNH-UHFFFAOYSA-N
SMILES CCCCCCCCCCCO
LogP 4.9 at 20℃
CAS DataBase Reference 112-42-5(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) UNDECYL ALCOHOL
EWG's Food Scores 1
FDA UNII 06MJ0P28T3
EPA Substance Registry System 1-Undecanol (112-42-5)
UNSPSC Code 12352104
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Environment (GHS09)
GHS07,GHS09
Signal word  Warning
Hazard statements  H319-H410
Precautionary statements  P264-P273-P280-P305+P351+P338-P337+P313-P391
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xi,N
Risk Statements  38-51/53-43
Safety Statements  37-61-36/37
RIDADR  UN 3082 9/PG 3
WGK Germany  2
RTECS  YQ3155000
TSCA  TSCA listed
HS Code  2905 19 00
HazardClass  9
PackingGroup  III
Storage Class 10 - Combustible liquids
Hazard Classifications Aquatic Acute 1
Aquatic Chronic 2
Eye Irrit. 2
Hazardous Substances Data 112-42-5(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 3000 mg/kg
REACH Registrations Active
Limited Quantities 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
NFPA 704
1
1 0

1-UNDECANOL price More Price(65)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich W309702 Undecyl alcohol 97%, FG 112-42-5 1 each $58 2026-04-30 Buy
Sigma-Aldrich W309702 Undecyl alcohol 97%, FG 112-42-5 1kg $198 2026-04-30 Buy
Sigma-Aldrich W309702 Undecyl alcohol 97%, FG 112-42-5 8kg $948 2026-04-30 Buy
Sigma-Aldrich U1001 1-Undecanol 99% 112-42-5 100g $67.4 2026-04-30 Buy
Sigma-Aldrich U1001 1-Undecanol 99% 112-42-5 500g $285 2026-04-30 Buy
Product number Packaging Price Buy
W309702 1 each $58 Buy
W309702 1kg $198 Buy
W309702 8kg $948 Buy
U1001 100g $67.4 Buy
U1001 500g $285 Buy

1-UNDECANOL Chemical Properties,Uses,Production

Background

1-undecanol, being an organic chemical with molecular formula C11H24O and scented with lemon, is a colorless or pale yellow , water insoluble but alcohol and ether soluble liquid. It is prepared from metal sodium reduction of Ethyl undecanoate, or pressurization and catalytic hydrogenation of ethyl ω- undecanoate , or even obtained by the Grignard reaction of nonyl magnesium bromide and with ethylene oxide. The application of this alcohol is limited. It is only used for some typical aroma oil and fragrance as the fat is solid at low temperature. The citrus rose type and the like only play a secondary and harmonious role and are taken as deodorant. In addition, it is also used to manufacture spices with the scent of acacia, polianthes tuberosa and the like.

Chemical Properties

It is colorless liquid at room temperature; scented with light sweet fat wax mixed with the scent of roses and fruity flavor of citrus, pineapple and the like. But generally the whole body smells scent of rose, as if a little bit of rue flavor. It will smell like orange after highly diluted with the soft sweet flavor of citrus fruit oil. Its concentration is less than 20 × 10-6 with fruity and sweet scent. Unpleasant fat and smell will be produced when the concentration is higher; Melting point :15 ~ 19 ℃; Flash point> 82 ℃; Density: D4250 .828 ~ 0.834; Refractive index: nD200.4370 ~ 1.4430; water insoluble, soluble in most organic solvents, 1: 4.soluble in 60% ethanol

Preparation

It is prepared from undecaethylene reduction. Put 200 ml of anhydrous toluene and 70 g of sodium into a 5-liter three-necked flask, and then heat reflux it until sodium is completely melted. Then stop heating, stir quickly to get the sodium to disperse into sand until the temperature drops to 60 ~ C. Then put 107 grams of ethyl undecanoate into 150ml absolute ethanol solution followed by adding 500ml of absolute ethanol. When the reaction is weakened, heat it in an oil bath until the sodium is completely dissolved. Next remove the ethanol and toluene through the method of steam distillation. Then wash the remaining oily substances with 200ml × 3 hot water. Then wash ether layer with a sequence of water, sodium carbonate and then water after the ethyl ether was extracted. Also dry with magnesium sulfate, boil off the ethyl ether. The product will be finally extracted from the residue after reduced pressure distillation. The yield is 70%. 112-42-5 synthesis

Uses

Although this undecanol is among the common varieties, but it is still not widely used. It is often used together with undecylenic aldenyde or other fat and aldehydes as the integrator of fragrant volatile of aldehyde. Also it can be well integrated with floral fragrance, citrus cologne, acacia, robinia pseudoacacia, tuberose, violets, clean and grass smell, usually used for rose base. Few application is also available in such pineapple, orange, lemon, lime, orange , cassis, rose food flavors.

Storage

Be sealed and stored in a cool dry place. Also be kept away from fire.

Chemical Properties

Colorless liquid; citrus odor. Soluble in 60% alcohol. Combustible.

Chemical Properties

Undecyl alcohol has a floral, citrus-like odor and fatty flavor.

Occurrence

Reported found in citrus fruits, fresh apple, banana, sour cherry, orange juice, orange peel oil, American cranberry, Vitis vinifera L., parmesan cheese, mushroom, tamarind, coriander seed and leaf, white wine, butter, heated butter, boiled eggs, boiled or uncured pork, plum brandy, coriander leaf, crayfish and oysters.

Uses

1-Undecanol is an antifungal, antioxidant compound. As well, it is used in the synthesis

Uses

1-Undecanol can be used as a precursor in the synthesis of undecanal by chemoselective oxidation using a fluorous derivative of TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) radical as a catalyst.
It can be also used as a solvent in homogeneous liquid-liquid microextraction method.

Definition

ChEBI: A fatty alcohol that is undecane substituted by a hydroxy group at position 1.

Preparation

By reduction of the corresponding aldehyde.

Synthesis Reference(s)

The Journal of Organic Chemistry, 60, p. 5961, 1995 DOI: 10.1021/jo00123a038

General Description

Undecyl alcohol has been reported as a key volatile constituent of Senecio tenuifolius and Flacourtia montana.

Health Hazard

Recommended Personal Protective Equipment: Goggles and face shield; Symptoms Following Exposure: Liquid can irritate eyes; General Treatment for Exposure: Wash eyes with water for at least 15 min.; Toxicity by Inhalation (Threshold Limit Value): Not pertinent; Short-Term Exposure Limits: Not pertinent; Toxicity by Ingestion: Grade 2, LD50 = 0.5-5 g/kg; Late Toxicity: Data not available; Vapor (Gas) Irritant Characteristics: None; Liquid or Solid Irritant Characteristics: No appreciable hazard. Practically harmless to the skin; Odor Threshold: Not pertinent.

Flammability and Explosibility

Non flammable

Chemical Reactivity

Reactivity with Water No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

Safety Profile

Moderately toxic by ingestion. A skin irritant. Combustible liquid. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALCOHOLS.

Metabolism

See alcohol C-8.

Purification Methods

Purify the alcohol by repeated fractional crystallisation from its melt or by distillation in a vacuum. [Beilstein 1 H 427, 1 IV 1835.]

112-43-6
112-42-5
Synthesis of 1-UNDECANOL from 10-UNDECEN-1-OL
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View Lastest Price from 1-UNDECANOL manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-Undecanol pictures 2026-05-11 1-Undecanol
112-42-5
$29.00 98.00% 10g TargetMol Chemicals Inc.
1-UNDECANOL pictures 2026-03-20 1-UNDECANOL
112-42-5
$10.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
1-UNDECANOL pictures 2025-07-29 1-UNDECANOL
112-42-5
$6.00 1kg 99% 2000KG/Month HebeiShuoshengImportandExportco.,Ltd
  • 1-Undecanol pictures
  • 1-Undecanol
    112-42-5
  • $29.00
  • 98.00%
  • TargetMol Chemicals Inc.
  • 1-UNDECANOL pictures
  • 1-UNDECANOL
    112-42-5
  • $10.00
  • 99%
  • Hebei Chuanghai Biotechnology Co., Ltd
  • 1-UNDECANOL pictures
  • 1-UNDECANOL
    112-42-5
  • $6.00
  • 99%
  • HebeiShuoshengImportandExportco.,Ltd
1-Undecanol 0 alcooln-undecylique Decyl carbinol decylcarbinol Dlcohol c-11 undecylic Hendecanoic alcohol hendecanoicalcohol Hendecyl alcohol hendecylalcohol 10-UNDECENAL 90+% UNDECANOL, 1-(SG) ALCOHOL C-11 UNDECYLIC, PHARMACEUTICAL GRADE 1-Undecanol, Alcohol C11, Undecyl alcohol Alcohol C11, Undecyl alcohol ALCOHOLC-11,UNDECYCLIC ALKOHOL C 11 1-undecylalcohol n-Hendecyl alcohol 1-Undecanol (Standard for GC,>99.5%) 1-Undecanol, 98% 100ML 1-Undecanol, 98% 500ML 1-UNDECANOL FOR SYNTHESIS 100 ML 1-Undecanol,98% 1-Undecanol 99% Neodol 1 Neoflex 11 n-Hendecylenic alcohol n-hendecylenicalcohol n-Undecan-1-ol Pri-n-undecyl alcohol Tip-Nip undecan-1- HENDECANOL 1-HENDECANOL 1-UNDECANOL ALCOHOL C-11 RARECHEM AL BD 0156 N-UNDECYL ALCOHOL 1-Hydroxyundecane UNDECANOL, 1- UNDECYLIC ALCOHOL 1-Undecol 1-UNDECANOL 112-42-5 UNDECANOL ALCOHOL Phloroglucinol Impurity 117 1-Undecanol, 10 mM in DMSO UNDECANOL M.W. 172.30 ALCOHOL C-11 UNDECYLIC FEMA 3097 n-Undecanol UNDECANOL Undecan-1-ol UNDECYL ALCOHOL 112-42-5 112425 30207988 CH3CH210OH C11H23OH