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General Material Information

Preferred name (E)-2-octenal
Trivial Name (E)-2-Octenal
Short Description trans-2-octenal
Formula C8 H14 O
CAS Number 2548-87-0
FEMA Number 3215
Flavis Number 5.19
ECHA Number 219-833-8
FDA UNII 55N91D7775
Nikkaji Number J100.559F
MDL MFCD00007011
COE Number 663
xLogP3-AA 2.60 (est)
NMR Predictor External link
FDA Patent No longer provide for the use of these seven synthetic flavoring substances
Synonyms
  • (2E)- oct-2-enal
  • (E)- oct-2-enal
  • trans- oct-2-enal
  • (E)-2-octen-1-al
  • trans-2-octen-1-al
  • trans-2-octen-1-al FCC, no antioxidant
  • trans- octen-2-al
  • (2E)-2-octenal
  • (E)-2-octenal
  • 2-trans- octenal
  • T2 octenal
  • trans-2-octenal
  • 2-octenal (trans-)
  • 2-octenal, (2E)-
  • 2-octenal, (E)-
  • trans-2-octenal, natural
  • (E)-oct-2-enal
  • 2-Octenal, (2E)-
  • 2-Octenal, (E)-
  • (2E)-2-Octenal
  • trans-2-Octenal
  • trans-Oct-2-en-1-al
  • (E)-2-Octen-1-al
  • (2E)-Octenal
  • (E)-Octen-2-enal
  • 2-(E)-Octenal

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Literature & References

(E)-oct-2-enal
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:2548-87-0
Pubchem (cid):5283324
Pubchem (sid):134983664
Flavornet:2548-87-0
Pherobase:View
Publications by Info
Volatile Flavor Components in Bogyojosaeng and Suhong Cultivars of Strawberry (Fragaria ananassa Duch.)
Publications by PubMed
Characterization of the Key Odorants in Chinese Chixiang Aroma Type Liquor by Gas Chromatography-Olfactometry, Quantitative Measurements, Aroma Recombination, and Omission Studies.
Bed bug aggregation pheromone finally identified.
Reactions of the selected ion flow tube mass spectrometry reagent ions H3O(+) and NO(+) with a series of volatile aldehydes of biogenic significance.
Theoretical study of the gas-phase reactions of NO3 radical with a series of trans-2-unsaturated aldehydes: from acrolein to trans-2-octenal.
Exocrine secretions of wheel bugs (Heteroptera: Reduviidae: Arilus spp.): clarification and chemistry.
The effects of fungal volatile organic compounds on bone marrow stromal cells.
Ultrahigh performance liquid chromatography analysis of volatile carbonyl compounds in virgin olive oils.
Identification of volatiles from oxidised phosphatidylcholine molecular species using headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS).
Effects of aliphatic aldehydes on the growth and patulin production of Penicillium expansum in apple juice.
Identification of characteristic flavour precursors from enzymatic hydrolysis-mild thermal oxidation tallow by descriptive sensory analysis and gas chromatography-olfactometry and partial least squares regression.
Shelf-life of infrared dry-roasted almonds.
Real-time measurement of volatile chemicals released by bed bugs during mating activities.
Defensive roles of (E)-2-alkenals and related compounds in heteroptera.
Antibacterial activity of 4-oxo-(E)-2-hexenal from adults and nymphs of the heteropteran, Dolycoris baccarum (Heteroptera: Pentatomidae).
Toxicity and metabolism of exogenous α,β-unsaturated carbonyls in potato (Solanum tuberosum L.) tubers.
An experimental study of the gas-phase reactions of NO3 radicals with a series of unsaturated aldehydes: trans-2-hexenal, trans-2-heptenal, and trans-2-octenal.
Iron-lactoferrin complex reduces iron-catalyzed off-flavor formation in powdered milk with added fish oil.
Differences in the volatile compositions of ginseng species (Panax sp.).
Gas chromatographic-olfactometric aroma profile and quantitative analysis of volatile carbonyls of grilled beef from different finishing feed systems.
Millipedes that smell like bugs: (E)-alkenals in the defensive secretion of the julid diplopod Allajulus dicentrus.
Change of volatile compounds in fresh fish meat during ice storage.
Simultaneous sampling and analysis of indoor air infested with Cimex lectularius L. (Hemiptera: Cimicidae) by solid phase microextraction, thin film microextraction and needle trap device.
Effect of enzyme activity and frozen storage on jalapeño pepper volatiles by selected ion flow tube-mass spectrometry.
Alarm pheromones and chemical communication in nymphs of the tropical bed bug Cimex hemipterus (Hemiptera: Cimicidae).
A new method for the determination of carbonyl compounds in wines by headspace solid-phase microextraction coupled to gas chromatography-ion trap mass spectrometry.
Nymphs of the common bed bug (Cimex lectularius) produce anti-aphrodisiac defence against conspecific males.
Molecular characterization, expression analysis, and role of ALDH3B1 in the cellular protection against oxidative stress.
Neurotoxicity of fungal volatile organic compounds in Drosophila melanogaster.
Comparison of tomatillo and tomato volatile compounds in the headspace by selected ion flow tube mass spectrometry (SIFT-MS).
4-oxo-aldehydes from the dorsal abdominal glands of the bed bug (Hemiptera: Cimicidae).
Characterization of the antennal olfactory system of the bed bug (Cimex lectularius).
Effect of temperature on lipid-related volatile production in tomato puree.
Characterization and quantification of odor-active compounds in unsaturated fatty acid/conjugated linoleic acid (UFA/CLA)-enriched butter and in conventional butter during storage and induced oxidation.
Addition of alarm pheromone components improves the effectiveness of desiccant dusts against Cimex lectularius.
Volatile composition of Catharanthus roseus (L.) G. Don using solid-phase microextraction and gas chromatography/mass spectrometry.
Identification of the airborne aggregation pheromone of the common bed bug, Cimex lectularius.
Comparison of odor-active compounds from six distinctly different rice flavor types.
Toxic oxygenated alpha,beta-unsaturated aldehydes and their study in foods: a review.
Light-induced off-flavor development in cloudy apple juice.
Truffle volatiles inhibit growth and induce an oxidative burst in Arabidopsis thaliana.
Semiochemical investigations of the insidious flower bug, Orius insidiosus (Say).
Inter- and intraspecific variation in defensive compounds produced by five neotropical stink bug species (Hemiptera: Pentatomidae).
Instrumental and sensory characterization of heat-induced odorants in aseptically packaged soy milk.
An assessment of the role played by some oxidation-related aldehydes in wine aroma.
In vitro antifungal and anti-elastase activity of some aliphatic aldehydes from Olea europaea L. fruit.
Difference in the volatile composition of pine-mushrooms (Tricholoma matsutake Sing.) according to their grades.
Critical aspects of the determination of pentafluorobenzyl derivatives of aldehydes by gas chromatography with electron-capture or mass spectrometric detection: Validation of an optimized strategy for the determination of oxygen-related odor-active aldehydes in wine.
Short and simple syntheses of 4-oxo-(E)-2-hexenal and homologs: pheromone components and defensive compounds of Hemiptera.
Identification of the larval aggregation pheromone of codling moth, Cydia pomonella.
Structural characterization of an etheno-2'-deoxyguanosine adduct modified by tetrahydrofuran.
Mastrus ridibundus parasitoids eavesdrop on cocoon-spinning codling moth, Cydia pomonella, larvae.
Comparison of the olfactory sensitivity of two sympatric steppe grasshopper species (Orthoptera: Acrididae) to plant volatile compounds.
Formation of volatile compounds in model experiments with crude leek (Allium ampeloprasum Var. Lancelot) enzyme extract and linoleic acid or linolenic acid.
Volatile components in metatarsal glands of sika deer, Cervus nippon.
Semiochemicals from the predatory stink bug Eocanthecona furcellata (Wolff): components of metathoracic gland, dorsal abdominal gland, and sternal gland secretions.
Identification of volatile compounds in soybean at various developmental stages using solid phase microextraction.
Identification of aroma active compounds in orange essence oil using gas chromatography-olfactometry and gas chromatography-mass spectrometry.
Determination of stale-flavor carbonyl compounds in beer by stir bar sorptive extraction with in-situ derivatization and thermal desorption-gas chromatography-mass spectrometry.
Kairomone strains of Euclytiaflava (Townsend), a parasitoid of stink bugs.
Study on the mechanisms of the antibacterial action of some plant alpha,beta-unsaturated aldehydes.
Character impact odorants of the apple cultivars Elstar and Cox Orange.
Synthesis, characterization and X-ray structures of new antiproliferative and proapoptotic natural aldehyde thiosemicarbazones and their nickel(II) and copper(II) complexes.
Chemical defense in the plant bug Lopidea robiniae (Uhler).
1,N6-etheno-2'-deoxyadenosine adducts from trans, trans-2,4-decadienal and trans-2-octenal.
DNA-damaging potential and glutathione depletion of 2-cyclohexene-1-one in mammalian cells, compared to food relevant 2-alkenals.
In vitro antibacterial activity of some aliphatic aldehydes from Olea europaea L.
Selective protection by stably transfected human ALDH3A1 (but not human ALDH1A1) against toxicity of aliphatic aldehydes in V79 cells.
Inhibition of formation of oxidative volatile components in fermented cucumbers by ascorbic acid and turmeric.
Aroma of fresh oysters Crassostrea gigas: composition and aroma notes.
Novel 1,N(6)-etheno-2'-deoxyadenosine adducts from lipid peroxidation products.
Development of oxidized odor and volatile aldehydes in fermented cucumber tissue exposed to oxygen.
Influence of variety and growing location on the development of off-flavor in precooked vacuum-packed potatoes.
Synthesis of trans-4,5-epoxy-(E)-2-decenal and its deuterated analog used for the development of a sensitive and selective quantification method based on isotope dilution assay with negative chemical ionization.
Structural and kinetic determinants of aldehyde reduction by aldose reductase.
Changes induced in bovine serum albumin following interactions with the lipid peroxidation product E-2-octenal.
Determination of aldehydes and other lipid peroxidation products in biological samples by gas chromatography-mass spectrometry.
Alpha,beta-unsaturated carbonyl compounds: inhibition of rat liver glutathione S-transferase isozymes and chemical reaction with reduced glutathione.
Modification of delipidated apoprotein B of low density lipoprotein by lipid oxidation products in relation to macrophage scavenger receptor binding.
Defensive secretion of rice bug,Leptocorisa oratorius fabricius, (Hemiptera: Coreidae): A unique chemical combination and its toxic, repellent, and alarm properties.
Volatile compounds from the predatory insectPodisus maculiventris (Hemiptera: Pentatomidae) : Male and female metathoracic scent gland and female dorsal abdominal gland secretions.

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
CHEBI:View
CHEMBL:View
KEGG (GenomeNet):C21138
HMDB (The Human Metabolome Database):HMDB13809
FooDB:FDB002956
Export Tariff Code:2912.19.5000
Typical G.C.
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View
Wikipedia:View

PhysChem Properties

Material listed in food chemical codex Yes
Molecular weight 126.19877624512
Specific gravity @ 25 °C
Pounds per Gallon 6.948 to 7.031
Refractive Index 1.449 to 1.455 @ 20 °C
Boiling Point 84 to 86°C @ 19 mm Hg
Boiling Point 50 to 55°C @ 2.5 mm Hg
Acid Value 5 max KOH/g
Vapor Pressure 0.552 mmHg @ 25 °C
Vapor Density 1
Flash Point TCC Value 68.33 °C TCC
logP (o/w) 2.809 est
Solubility
alcohol Yes
fixed oils Yes
water, 612.7 mg/L @ 25 °C (est) Yes

Organoleptic Properties

Odor Type: Fatty
fresh, cucumber, fatty, green, herbal, banana, waxy, leafy
Odor strength high , recommend smelling in a 1.00 % solution or less
Substantivity 68 hour(s) at 100.00 %
Luebke, William tgsc, (1988) At 1.00 % in dipropylene glycol. fresh cucumber fatty green herbal banana waxy green leaf
Flavor Type: Fatty
sweet, green, citrus peel, spicy, cucumber, oily, fatty, brothy
Luebke, William tgsc, (1988) Sweet green citrus peel spicy cucumber oily fatty brothy
Citrus especially orange, fatty notes of nuts especially hazelnut. Sweet, fatty, citrus peel
General comment Sweet, green

Occurrences

Potential Uses

Applications
Odor purposes Berry, Cherry, Citrus, Cucumber, Fruit, Fungus, Green, Herbal, Mandarin, Melon, Orange, Spice, Tangerine
Flavoring purposes Cheese, Dairy, Fish, Meat, Nut, Rice, Vegetable
Other purposes Leaf
Cosmetic purposes Perfuming agents

Safety Information

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
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
flavor and fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Recommendation for (E)-2-octenal usage levels up to:
0.1000 % in the fragrance concentrate.
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.79 (μg/capita/day)
Modified Theoretical Added Maximum Daily Intake (mTAMDI): 2000 (μg/person/day)
Threshold of Concern:1800 (μg/person/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: -1.00000
beverages(nonalcoholic): --
beverages(alcoholic): --
breakfast cereal: --
cheese: --
chewing gum: --
condiments / relishes: -1.00000
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: --
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: -1.00000
hard candy: -1.00000
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: -1.00000
milk products: --
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: --
soups: -1.00000
sugar substitutes: --
sweet sauces: --
Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFSA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFSA, 2002i).
Note: mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm.
average usage mg/kgmaximum usage mg/kg
Dairy products, excluding products of category 02.0 (01.0): 5.7000012.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0): 1.5000014.25000
Edible ices, including sherbet and sorbet (03.0): 0.900002.98000
Processed fruit (04.1): --
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): 5.000005.03000
Confectionery (05.0): 5.5000014.46000
Chewing gum (05.3): --
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): 4.8000011.55000
Bakery wares (07.0): 8.0000019.07000
Meat and meat products, including poultry and game (08.0): 0.900002.98000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): 0.900002.98000
Eggs and egg products (10.0): 0.900002.98000
Sweeteners, including honey (11.0): 0.900002.98000
Salts, spices, soups, sauces, salads, protein products, etc. (12.0): 2.000005.00000
Foodstuffs intended for particular nutritional uses (13.0): --
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): 2.000004.43000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): 1.000002.00000
Ready-to-eat savouries (15.0): 2.500004.50000
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): 0.900002.98000

Safety references

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

Scientific Opinion on Flavouring Group Evaluation 200, Revision 1 (FGE.200 Rev.1): 74 a,ß-unsaturated aliphatic aldehydes and precursors from chemical subgroup 1.1.1 of FGE.19
View page or View pdf

Safety and efficacy of 26 compounds belonging to chemical group 3 (a,ß-unsaturated straight-chain and branched-chain aliphatic primary alcohols, aldehydes, acids and esters) when used as flavourings for all animal species and categories
View page or View pdf

Scientific Opinion on Flavouring Group Evaluation 5, Revision 3 (FGE.05Rev3): Branched- and straight-chain unsaturated aldehydes, dienals, unsaturated and saturated carboxylic acids and related esters with saturated and unsaturated aliphatic alcohols and a phenylacetic acid related ester from chemical groups 1, 2, 3, 5 and 15
View page or View pdf

EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):2548-87-0
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :5283324
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
(E)-oct-2-enal
Chemidplus:0002548870
RTECS:RH2130000 for cas# 2548-87-0