EU/US Properties Organoleptics Cosmetics Suppliers Safety Safety in use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes


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CAS Number: 1120-21-4Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:214-300-6
Nikkaji Web:J1.759K
Beilstein Number:1697099
XlogP3:5.60 (est)
Molecular Weight:156.31228000
Formula:C11 H24
BioActivity Summary:listing
NMR Predictor:Predict (works with chrome, Edge or firefox)
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist:Search
Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
Physical Properties:
Appearance:colorless clear liquid (est)
Assay: 98.00 to 100.00
Food Chemicals Codex Listed: No
Specific Gravity:0.73900 to 0.74300 @ 20.00 °C.
Pounds per Gallon - (est).: 6.156 to 6.190
Refractive Index:1.41600 to 1.41900 @ 20.00 °C.
Melting Point: -26.00 °C. @ 760.00 mm Hg
Boiling Point: 195.00 to 198.00 °C. @ 760.00 mm Hg
Vapor Pressure:0.564000 mmHg @ 25.00 °C. (est)
Vapor Density:5.4 ( Air = 1 )
Flash Point: 140.00 °F. TCC ( 60.00 °C. )
logP (o/w): 6.312 (est)
Soluble in:
 water, 0.2571 mg/L @ 25 °C (est)
 water, 0.0044 mg/L @ 25 °C (exp)
Insoluble in:
Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
CosIng:cosmetic data
Cosmetic Uses: skin conditioning
skin conditioning - emollient
Beijing Lys Chemicals
BOC Sciences
For experimental / research use only.
ECSA Chemicals
Glentham Life Sciences
Santa Cruz Biotechnology
For experimental / research use only.
Undecane, ≥99%
Certified Food Grade Products
For experimental / research use only.
Undecane [Standard Material for GC] >99.5%(GC)
Tianjin Danjun International
Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xn - Harmful.
R 36/37/38 - Irritating to eyes, respiratory system, and skin.
R 65 - Harmful: may cause lung damage if swallowed.
S 02 - Keep out of the reach of children.
S 20/21 - When using do not eat, drink or smoke.
S 24/25 - Avoid contact with skin and eyes.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 37/39 - Wear suitable gloves and eye/face protection.
S 62 - If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
Flammable liquids (Category 4), H227
Aspiration hazard (Category 1), H304
GHS Label elements, including precautionary statements
Signal word Warning
Hazard statement(s)
H227 - Combustible liquid
H304 - May be fatal if swallowed and enters airways
Precautionary statement(s)
P210 - Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P280 - Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P310 - IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P331 - Do NOT induce vomiting.
P370 + P378 - In case of fire: Use dry sand, dry chemical or alcohol-resistant foam for extinction.
P403 + P235 - Store in a well-ventilated place. Keep cool.
P405 - Store locked up.
P501 - Dispose of contents/ container to an approved waste disposal plant.
Oral/Parenteral Toxicity:
intravenous-mouse LD50 517 mg/kg
Journal of Pharmaceutical Sciences. Vol. 67, Pg. 566, 1978.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
inhalation-rat LC50 > 442 ppm/8H
Pharmacology and Toxicology Vol. 62, Pg. 259, 1988.

Safety in Use Information:
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Recommendation for undecane flavor usage levels up to:
 not for flavor use.
Safety References:
EPI System: View
Chemical Carcinogenesis Research Information System:Search
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):1120-21-4
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :14257
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
EPA/NOAA CAMEO:hazardous materials
RTECS:YQ1525000 for cas# 1120-21-4
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:1120-21-4
Pubchem (cid):14257
Pubchem (sid):134979946
Other Information:
(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
Golm Metabolome Database:Search
HMDB (The Human Metabolome Database):HMDB31445
Export Tariff Code:2901.10.5000
Typical G.C.
VCF-Online:VCF Volatile Compounds in Food
grades: 95%; 99%; research.
Potential Blenders and core components note
None Found
Potential Uses:
None Found
Occurrence (nature, food, other):note
 allspice plant
Search Trop Picture
 bay laurel leaf oil
Search Trop Picture
 carrot leaf oil @ 0.22%
Data GC Search Trop Picture
 coriander leaf oil @ 0.04-0.06%
Data GC Search Trop Picture
 costmary oil @ 0.12%
Data GC Search Trop Picture
 dialium guineense wild.fruit oil france @ 3.90%
Data GC Search Trop Picture
 dill leaf
Search Trop Picture
 dill weed oil reunion @ trace%
Data GC Search Trop Picture
 fenugreek seed
Search Trop Picture
 lime fruit
Search Trop Picture
 lime oil distilled peru @ 0.02%
Data GC Search Trop Picture
 mikan peel oil @ trace%
Data GC Search Trop Picture
 oregano plant
Search Trop Picture
 osmanthus absolute @ 0.008%
Data GC Search Trop Picture
 pittosporum spp. fruit oil malaysia @ 0.40%
Data GC Search Trop Picture
 salvia officinalis seed oil tunisia @ 0.48%
Data GC Search Trop Picture
 salvia sclarea seed oil tunisia @ 0.75%
Data GC Search Trop Picture
 salvia verbenaca seed oil tunisia @ 2.65%
Data GC Search Trop Picture
 ulva rigida oil greece @ 1.80%
Data GC Search PMC Picture
 walnut black walnut oil
Search Trop Picture


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PubMed:Genetic attachment of undecane peptides to ovomucoid third domain can suppress the production of specific IgG and IgE antibodies.
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Undecane (also known as hendecane) is a liquid alkane hydrocarbon with the chemical formula CH3(CH2)9CH3. It is used as a mild sex attractant for various types of moths and cockroaches, and an alert signal for a variety of ants. It has 159 isomers. (Wikipedia)
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