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(R)-1-Octen-3-ol, also known as 1-vinylhexanol or 3-hydroxy-1-octene, belongs to the class of organic compounds known as fatty alcohols. These are aliphatic alcohols consisting of a chain of a least six carbon atoms

Ethyl pentyl ketone, also known as 3-oxooctane or EAK, belongs to the class of organic compounds known as ketones. These are organic compounds in which a carbonyl group is bonded to two carbon atoms R2C=O (neither R may be a hydrogen atom). Ketones that have one or more alpha-hydrogen atoms undergo keto-enol tautomerization, the tautomer being an enol. Thus, ethyl pentyl ketone is considered to be an oxygenated hydrocarbon lipid molecule. A dialkyl ketone that is octane in which the two methylene protons at position 3 have been replaced by an oxo group. Ethyl pentyl ketone is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Ethyl pentyl ketone has been detected, but not quantified, in cardamoms and lemons. This could make ethyl pentyl ketone a potential biomarker for the consumption of these foods. Ethyl pentyl ketone, with regard to humans, has been linked to the inborn metabolic disorder celiac disease.

Octanal, also known as 1-caprylaldehyde or aldehyde C-8, belongs to the class of organic compounds known as medium-chain aldehydes. These are an aldehyde with a chain length containing between 6 and 12 carbon atoms. Thus, octanal is considered to be a fatty aldehyde lipid molecule. A saturated fatty aldehyde formally arising from reduction of the carboxy group of caprylic acid (octanoic acid). Octanal is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Octanal exists in all eukaryotes, ranging from yeast to humans. Octanal is an aldehydic, citrus, and fat tasting compound. Octanal is commonly found in high concentrations in limes, caraway, and mandarin orange (clementine, tangerine) and in lower concentrations in wild carrots and carrots. Octanal has also been detected, but not quantified in several different foods, such as cherry tomato, brussel sprouts, alaska wild rhubarbs, sweet marjorams, and sunflowers.

(R)-Sulcatol is found in herbs and spices. (R)-Sulcatol occurs in lemongrass oi

2-Methyl-4-heptanone is an ant pheromone used to alarm fellow ants (Elma A. de Jong and Ben L. Feringa, The synthesis of 2-methyl-4-heptanone, J. Chem. Educ., 68(1), p71, 1991).

(-)-trans-2,5-Diethyltetrahydrofuran is found in herbs and spices. (-)-trans-2,5-Diethyltetrahydrofuran is a constituent of the essential oil of Mentha species

2-Octanone, also known as octan-2-one or fema 2802, belongs to the class of organic compounds known as ketones. These are organic compounds in which a carbonyl group is bonded to two carbon atoms R2C=O (neither R may be a hydrogen atom). Ketones that have one or more alpha-hydrogen atoms undergo keto-enol tautomerization, the tautomer being an enol. Thus, 2-octanone is considered to be an oxygenated hydrocarbon lipid molecule. 2-Octanone is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. 2-Octanone is a bitter, earthy, and gasoline tasting compound. 2-Octanone has been detected, but not quantified, in several different foods, such as tortilla chips, cloves, tea, corns, and pomes. This could make 2-octanone a potential biomarker for the consumption of these foods. A methyl ketone that is octane substituted by an oxo group at position 2.

(E)-2-Octen-1-ol is a predominant volatile odour compound produced by Aspergillus flavus ; (E)-2-Octen-1-ol is a flavouring ingredient. [CCD].

(Z)-5-Octen-1-ol is found in fruits. (Z)-5-Octen-1-ol is a constituent of apples, banana and passionfruit. (Z)-5-Octen-1-ol is a flavouring ingredient

(±)-(E)-2-Octen-4-ol is a food flavourant for baked goods and candie

2-Methyl-3-heptanone is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")

3-Octen-2-ol is found in cereals and cereal products. 3-Octen-2-ol is a flavouring ingredient. 3-Octen-2-ol is produced from mold (Penicillium cyclopium, Aspergilus amstelodami) affected wheat grains. Also present in fish oil and krill products.

(Z)-3-Octen-1-ol is found in fruits. (Z)-3-Octen-1-ol is a flavouring ingredient present in banana, passionfruit and green peas.

(E)-3-Octen-1-ol is found in fruits. (E)-3-Octen-1-ol is found in ripe banana

xi-7-Octen-2-ol is found in milk and milk products. xi-7-Octen-2-ol is present in goat's cheese.

3,4-Dimethylcyclohexanol belongs to the class of organic compounds known as cyclohexanols. These are compounds containing an alcohol group attached to a cyclohexane ring.

3,5-Dimethylcyclohexanol belongs to the class of organic compounds known as cyclohexanols. These are compounds containing an alcohol group attached to a cyclohexane ring.

Oct-trans-2-en-1-ol is a member of the class of compounds known as fatty alcohols. Fatty alcohols are aliphatic alcohols consisting of a chain of a least six carbon atoms. Thus, oct-trans-2-en-1-ol is considered to be a fatty alcohol lipid molecule. Oct-trans-2-en-1-ol is slightly soluble (in water) and an extremely weak acidic compound (based on its pKa). Oct-trans-2-en-1-ol can be found in corn, oat, and watermelon, which makes oct-trans-2-en-1-ol a potential biomarker for the consumption of these food products.

7-octen-4-ol is a member of the class of compounds known as secondary alcohols. Secondary alcohols are compounds containing a secondary alcohol functional group, with the general structure HOC(R)(R') (R,R'=alkyl, aryl). 7-octen-4-ol is slightly soluble (in water) and an extremely weak acidic compound (based on its pKa). 7-octen-4-ol can be found in soy bean, which makes 7-octen-4-ol a potential biomarker for the consumption of this food product.

4-octanone is a member of the class of compounds known as ketones. Ketones are organic compounds in which a carbonyl group is bonded to two carbon atoms R2C=O (neither R may be a hydrogen atom). Ketones that have one or more alpha-hydrogen atoms undergo keto-enol tautomerization, the tautomer being an enol. 4-octanone is slightly soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). 4-octanone can be found in lovage, which makes 4-octanone a potential biomarker for the consumption of this food product. Octanone may refer to any of three isomeric chemical compounds: 2-Octanone 3-Octanone 4-Octanone .