Enhances rose and geranium.
  • Beijing Lys Chemicals
    • Beijing Lys Chemicals Co, LTD.
      From Grams to Tons
      Fine chemical high-tech company which contains R&D, production, and sales.
      BEIJING LYS CHEMICALS CO, LTD, established in 2004, is a fine chemical high-tech company which contains R&D, production, and sales. We mainly engaged in export and technology development of flavor and fragrance materials and pharmaceutical intermediates. We have nearly 500 kinds of products, from grams to tons, exported to USA, Europe, South Asia and etc. And we custom manufacture new products according to customers’ needs, and serve good quality products and service. Our goal is to become a fine chemical enterprise which could provide special products and services.
      Email: Mr. Jia
      Email: Mr. Guo
      Voice: 86-10-68418738
      Fax: 86-10-68418739
      Mr. Guo86-10-68483445
      Mr. Guo86-10-68418739
      10706 trans-2-Nonenal
  • Charkit Chemical
    • Charkit Chemical Corporation
      The Specialty Chemical Specialists
      Explore this website to discover the products and services that Charkit provides for your industry and please contact us directly to find out how we can be of service to you.
      Since 1982, Charkit has been committed to expanding the markets we serve and our roster of products and services continues to grow with us. Personal care ingredients now include a substantial array of luxury and exotic components. Substantial inroads have been made in the nutraceutical and resins markets, with a growing roster of versatile and unique ingredients. And we continue to lead the way in our traditional markets such as Metal and Water Treatment, Imaging, Flavor & Fragrance, Aroma and Food. Our Pharmaceutical offerings continue to expand, still anchored by the Boronic Derivatives that meet the demands of Suzuki coupling reactions.
      Email: Sales
      Voice: 203-299-3220
      Fax: 203-299-1355
      Products List: View
  • CTC Organics
    • CTC Organics
      For More Than 40 Year
      Your source for rare aroma chemicals for the flavor and fragrance industy.
      “The world is run by middle men.” The number of times I have heard Dr. Liu utter those words are innumerable. He loved reciting and recording famous quotes and had many of his own. Among his many talents, Dr. Liu had a unique genius in the area of chemistry. He had an uncanny understanding of the pulse of the chemical industry and was a superb salesman.
      US Email: Customer Service
      US Voice: (404) 524-6744
      US Fax: (404) 577-1651
      W1412 trans-2-nonenal
  • Excellentia International
    • Excellentia International
      Ingredients by Nature
      Exceptional quality and excellence in meeting our customers requirements.
      Excellentia International was founded in 2010 through the merger of Excellentia Flavors LLC and Polarome International. Collectively, these companies account for more than one hundred years of industry experience, and are recognized for exceptional quality and excellence in meeting our customers’ requirements.
      Email: Info
      Email: Sales
      Email: Regulatory
      Voice: 732.749.9840
      Our Services
      trans-2-Nonenal Natural
  • Frutarom
    • Frutarom Ltd
      Discover Our Passion
      Your preferred partner for flavour and fragrance success.
      At Frutarom, we take pride in our expertise and knowledge of Flavour & Fragrance Ingredients and our thorough understanding of the needs of Flavourists, Perfumers and Food Technologists. Working closely with our customers we have a strong track record of providing unique solutions to fulfil requirements.
      US Email: Info- USA
      Email: Info - UK
      Voice: +44 (0) 1429 863 222
      US Voice: +1 513 870 4900
      Products List: View
      N0100-0 trans-2-NONENAL ≥98.00% (sum of isomers), NI, Kosher
      Suggested Uses: Apricot, Cheese, Citrus Fruits, Coffee, Hard Fruits, Mushroom, Nut, Orange, Soft Fruits, Tea, Tomato
Synonyms   Articles   Notes   Search
Fragrance Demo Formulas
(E)-non-2-enal (Click)
CAS Number: 18829-56-6
% from: 96.00% to 99.90%
ECHA EINECS - REACH Pre-Reg: 242-609-6
FDA UNII: 8VEO649985
Nikkaji Web: J110.528K
Beilstein Number: 1722170
MDL: MFCD00007012
CoE Number: 733
XlogP3-AA: 3.10 (est)
Molecular Weight: 140.22572000
Formula: C9 H16 O
NMR Predictor: Predict (works with chrome or firefox)
Also(can) Contains: (Z)-2-nonenal 0.10% to 3.50%
EFSA/JECFA Comments: At least 92%; secondary component 3-4% 2-nonenoic acid. (CoE)
Category: flavor and fragrance agents
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
PubMed: Search
NCBI: Search
Flavis Number: 05.072 (Old)
DG SANTE Food Flavourings: 05.072  trans-2-nonenal
FEMA Number: 3213  trans-2-nonenal
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Physical Properties:
Appearance: colorless to pale yellow clear liquid (est)
Assay: 92.00 to 100.00 % sum of isomers
Food Chemicals Codex Listed: Yes
Specific Gravity: 0.85500 to 0.86500 @  25.00 °C.
Pounds per Gallon - (est).: 7.114 to  7.198
Refractive Index: 1.45400 to 1.46000 @  20.00 °C.
Boiling Point: 88.00 to  90.00 °C. @ 12.00 mm Hg
Boiling Point: 188.00 to  190.00 °C. @ 760.00 mm Hg
Acid Value: 5.00 max. KOH/g
Vapor Pressure: 0.256000 mm/Hg @ 25.00 °C. (est)
Vapor Density: 4.8 ( Air = 1 )
Flash Point: 184.00 °F. TCC ( 84.44 °C. )
logP (o/w): 3.319 (est)
Synonyms   Articles   Notes   Search   Top
Organoleptic Properties:
Odor Type: fatty
Odor Strength: high ,
recommend smelling in a 1.00 % solution or less
 fatty  green  cucumber  aldehydic  citrus  
Odor Description:
at 1.00 % in dipropylene glycol. 
fatty green cucumber aldehydic citrus
 green  cucumber  aldehydic  fatty  citrus  
Odor Description:
Green, cucumber, aldehydic, fatty with a citrus nuance
Mosciano, Gerard P&F 16, No. 3, 79, (1991)
 green  soapy  cucumber  melon  aldehydic  fatty  
Taste Description:
at 10.00 ppm.  
Green, soapy, cucumber / melon-like with an aldehydic / fatty nuance
Mosciano, Gerard P&F 16, No. 3, 79, (1991)
Synonyms   Articles   Notes   Search   Top
Cosmetic Information:
CosIng: cosmetic data
Cosmetic Uses: perfuming agents
Synonyms   Articles   Notes   Search   Top
Advanced Biotech
Advanced Biotech
Odor: Alcoholic, Fatty
Advanced Biotech
Odor: Alcoholic, Fatty
Advanced Biotech
Advanced Biotech
Odor: Fatty, Violet
Apiscent Labs
Odor: Powerful fried fatty odor with citrus-like background
Apple Flavor & Fragrance
Axxence Aromatic
TRANS-2-NONENAL 1% IN ETHANOL, Natural, Kosher
Axxence Aromatic
TRANS-2-NONENAL, Natural, Kosher
Bedoukian Research
≥96.0% (trans), FCC, Kosher
Odor: Green, aldeydic, bright odor with persistent fatty, carrot leaf, and melon notes
Use: Addition of traces to ionones and methyl ionones lends power and diffusion. Blends well with florals.
Flavor: Sweet, fatty, citrus, melon
Citrus especially orange, melon especially cantaloupe.
Beijing Lys Chemicals
Charkit Chemical
CTC Organics
Excellentia International
trans-2-Nonenal Natural
≥98.00% (sum of isomers), NI, Kosher
Odor: Citrus, Cucumber, Fatty, Green
Use: Suggested Uses: Apricot, Cheese, Citrus Fruits, Coffee, Hard Fruits, Mushroom, Nut, Orange, Soft Fruits, Tea, Tomato
Inoue Perfumery
Lluch Essence
Natural Advantage
trans-2 Nonenal Nat
Penta International
Penta International
Penta International
Penta International
trans-2-NONENAL, Kosher
Reincke & Fichtner
Santa Cruz Biotechnology
For experimental / research use only.
trans-2-Nonenal 97%
trans-2-Nonenal, ≥95%, FG
Odor: waxy; fatty
Certified Food Grade Products
The Perfumers Apprentice
Cucumber Aldehyde (Natural)
Odor: This Natural Cucumber Aldehyde is the experience of pure unadulterated crisp, green, fresh & light cucumber
Synonyms   Articles   Notes   Search   Top
Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xi - Irritant
R 36/38 - Irritating to skin and eyes.
S 02 - Keep out of the reach of children.
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.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Human Experience:
4 % solution: no irritation or sensitization.
Oral/Parenteral Toxicity:
oral-rat LD50  5000 mg/kg
Mosciano, Gerard P&F 16, No. 3, 79, (1991)

Dermal Toxicity:
skin-rabbit LD50 3700 mg/kg
Mosciano, Gerard P&F 16, No. 3, 79, (1991)

Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: flavor and fragrance agents
Recommendation for (E)-2-nonenal usage levels up to:
  4.0000 % in the fragrance concentrate.
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.12 (μg/capita/day)
Structure Class: I
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 4
Click here to view publication 4
 average usual ppmaverage maximum ppm
baked goods: -0.20000
beverages(nonalcoholic): --
beverages(alcoholic): --
breakfast cereal: -0.20000
cheese: --
chewing gum: --
condiments / relishes: -0.20000
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: --
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: -0.20000
hard candy: --
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: -0.20000
milk products: -0.20000
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: --
soups: -0.20000
sugar substitutes: --
sweet sauces: --
Synonyms   Articles   Notes   Search   Top
Safety References:
Flavor & Extract Manufacturers Association (FEMA) reference(s):
The FEMA GRAS assessment of alpha,beta-unsaturated aldehydes and related substances used as flavor ingredients.View pdf
European Food Safety Athority(efsa): Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
European Food Safety Authority (EFSA) reference(s):
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
View page or View pdf
EPI System: View
Chemical Carcinogenesis Research Information System: Search
Env. Mutagen Info. Center: Search
NLM Developmental and Reproductive Toxicity: Search
EPA Substance Registry Services (TSCA): 18829-56-6
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 5283335
National Institute of Allergy and Infectious Diseases: Data
WGK Germany: 3
Chemidplus: 0018829566
RTECS: RA8509050 for cas# 18829-56-6
Synonyms   Articles   Notes   Search   Top
NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 18829-56-6
Pubchem (cid): 5283335
Pubchem (sid): 134982395
Flavornet: 18829-56-6
Pherobase: View
Synonyms   Articles   Notes   Search   Top
Other Information:
(IUPAC): Atomic Weights of the Elements 2009
(IUPAC): Atomic Weights of the Elements 2009 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
HMDB (The Human Metabolome Database): Search
YMDB (Yeast Metabolome Database): YMDB01794
Export Tariff Code: 2912.19.9000
VCF-Online: VCF Volatile Compounds in Food
ChemSpider: View
Wikipedia: View
RSC Learn Chemistry: View
Read: Under the conditions of intended use - New developments in the FEMA GRAS program and the safety assessment of flavor ingredients
Read: A GRAS assessment program for flavor ingredients
Read: Sensory testing for flavorings with modifying properties. Food Technology
Read: Criteria for the safety evaluation of flavoring substances
Read: A procedure for the safety evaluation of natural flavor complexes used as ingredients in food: essential oils
Read: FEMA Expert Panel: 30 Years of safety evaluation for the flavor industry
Read: Consumption ratio and food predominance of flavoring materials
Synonyms   Articles   Notes   Search   Top
Potential Blenders and core components note
 cilantro leaf oilFL/FR
 citronellyl formateFL/FR
 cumin acetaldehydeFL/FR
isocyclocitral (IFF)FL/FR
 dodecanal (aldehyde C-12 lauric)FL/FR
 ethyl hexanoateFL/FR
 fresh carbaldehydeFR
 green carbaldehydeFR
 hexanal butane-2,3-diol acetalFL
 hexanal octane-1,3-diol acetalFL
(Z)-3-hexen-1-yl pyruvateFL/FR
 melon carboxaldehydeFR
 manzanate (Givaudan)FL/FR
 methyl 2-hexenoateFL/FR
 methyl 2-methyl butyrateFL/FR
 methyl heptine carbonateFL/FR
 methyl octine carbonateFL/FR
(E,Z)-2,6-nonadienal diethyl acetalFL/FR
(E,Z)-3,6-nonadien-1-yl acetateFL/FR
3,6-nonadien-1-yl acetateFL/FR
 octane nitrileFR
 octyl isobutyrateFL/FR
 propyl 2,4-decadienoateFL/FR
 watermelon ketoneFR
Synonyms   Articles   Notes   Search   Top
Potential Uses:
 apple greenFR
 bread crisp bread 
 bread crust 
 fungus mushroomFR
 grape brandy 
 melon honeydewFR
 melon watermelon muskmelon cantaloupe 
 nut filbertFR
 nut peanutFR
 nut sesameFL
 orris irisFR
 pea green pea 
Synonyms   Articles   Notes   Search   Top
Natural Occurrence in: note
 artichoke cooked artichoke
GRIN Trop Picture
 asparagus cooked asparagus
GRIN Trop Picture
 bread white bread
GRIN Trop Picture
 carrot leaf oil @ 3.22%
Data  GC  GRIN Trop Picture
 cassie absolute @ 0.20%
Data  GC  GRIN Trop Picture
 crithmum maritimum l. oil turkey @ 0.10%
Data  GC  GRIN Trop Picture
 filbert roasted filbert
GRIN Trop Picture
GRIN Trop Picture
 lychee canned lychee
 peanut roasted peanut
 potato chip
 rice cooked rice
 sesame seed roasted
GRIN Trop Picture
 soya bean
GRIN Trop Picture
GRIN Trop Picture
 thyme oil wild or creeping france @ 0.05%
Data  GC  GRIN Trop Picture
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(E)-cucumber aldehyde natural
(E)-heptylidene acetaldehyde
(E)-3-hexyl acrolein
T2 nonenal
trans-2-nonenal 1% in ethanol natural
trans-2-nonenal 1% in triethyl citrate natural
trans-2-nonenal 10% in liponate natural
trans-2-nonenal natural 1% in ETOH (EU & US natural)
trans-2-nonenal natural 5% in ETOH (EU & US natural)
trans-2-nonenal natural 5% in natural ethyl acetate (EU & US natural)
2-nonenal, (2E)-
2-nonenal, (E)-
2-nonenal, (trans)-isomer
Synonyms   Articles   Notes   Search   Top
PubMed: Identification of Potent Odorants in a Novel Nonalcoholic Beverage Produced by Fermentation of Wort with Shiitake (Lentinula edodes).
PubMed: Ultrahigh performance liquid chromatography analysis of volatile carbonyl compounds in virgin olive oils.
PubMed: Cooked carrot volatiles. AEDA and odor activity comparisons. Identification of linden ether as an important aroma component.
PubMed: Influence of heating and acidification on the flavor of whey protein isolate.
PubMed: Influence of endogenous ferulic acid in whole wheat flour on bread crust aroma.
PubMed: Comparison of the flavor chemistry and flavor stability of mozzarella and cheddar wheys.
PubMed: Studies on the key aroma compounds in soy milk made from three different soybean cultivars.
PubMed: Volatile compounds with characteristic odour in moso-bamboo stems (Phyllostachys pubescens Mazel ex Houz. De ehaie).
PubMed: Identification and formation of volatile components responsible for the characteristic aroma of mat rush (igusa).
PubMed: Decrease of aged beer aroma by the reducing activity of brewing yeast.
PubMed: Binding of flavor compounds and whey protein isolate as affected by heat and high pressure treatments.
PubMed: Comparison of odor-active compounds from six distinctly different rice flavor types.
PubMed: Aroma components of American country ham.
PubMed: Instrumental and sensory characterization of heat-induced odorants in aseptically packaged soy milk.
PubMed: An assessment of the role played by some oxidation-related aldehydes in wine aroma.
PubMed: Characterization of aroma-active compounds in rainbow trout (Oncorhynchus mykiss) eliciting an off-odor.
PubMed: Characterization and semiquantitative analysis of volatiles in seedless watermelon varieties using solid-phase microextraction.
PubMed: Identification of a stale-beer-like odorant in extracts of naturally aged beer.
PubMed: The cytotoxic and genotoxic effects of conjugated trans-2-nonenal (T2N), an off-flavor compound in beer and heat processed food arising from lipid oxidation.
PubMed: Enzymatic hydrogenation of trans-2-nonenal in barley.
PubMed: Further insights into the role of methional and phenylacetaldehyde in lager beer flavor stability.
PubMed: Identification and sensory evaluation of volatile compounds in oxidized porcine liver.
PubMed: Determination of stale-flavor carbonyl compounds in beer by stir bar sorptive extraction with in-situ derivatization and thermal desorption-gas chromatography-mass spectrometry.
PubMed: Release of deuterated (E)-2-nonenal during beer aging from labeled precursors synthesized before boiling.
PubMed: How low pH can intensify beta-damascenone and dimethyl trisulfide production through beer aging.
PubMed: Quantitation of odor-active compounds in rye flour and rye sourdough using stable isotope dilution assays.
PubMed: Fresh cucumber flavor in refrigerated pickles: comparison of sensory and instrumental analysis.
PubMed: Relationships between antioxidant activity, color, and flavor compounds of crystal malt extracts.
PubMed: Determination of key aroma compounds in the crumb of a three-stage sourdough rye bread by stable isotope dilution assays and sensory studies.
PubMed: Solid-phase microextraction (SPME) technique for measurement of generation of fresh cucumber flavor compounds.
PubMed: Apparatus for the quantitative analysis of the aroma of french bread and its loss during storage.
PubMed: Aroma components of an oil-based grill flavoring by direct thermal desorption-gas chromatography-olfactometry and sample dilution analysis.
PubMed: In vitro antibacterial activity of some aliphatic aldehydes from Olea europaea L.
PubMed: Identification of character impact odorants of different soybean lecithins.
PubMed: Influence of variety and growing location on the development of off-flavor in precooked vacuum-packed potatoes.
PubMed: Release of deuterated nonenal during beer aging from labeled precursors synthesized in the boiling kettle.
PubMed: trans-2-Nonenal insect repellent, insecticide, and flavor compound in carrot roots, cell suspensions, and "hairy" root cultures.
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click on the picture(s) below to
interact with the 3D model
Picture of molecule
Soluble in:
 dipropylene glycol
 fixed oils
 water, 204.9 mg/L @ 25 °C (est)
Insoluble in:
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