1.0 2010-04-08 22:05:44 UTC 2025-11-18 22:50:25 UTC FDB003303 Nonanal Nonanal, also known as nonyl aldehyde or pelargonaldehyde, 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. It is a fatty aldehyde lipid molecule. Nonanal, a colourless, oily liquid, is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Nonanal exists in all eukaryotes, from yeast to humans. Nonanal has an aldehydic, citrus, and fat taste. Nonanal is found in highest concentration in corns, tea, and gingers and in lower concentrations in sweet oranges, carrots, and limes. It has also been detected in olives, cereals and cereal products, Chinese cinnamons, common grapes, and oats, making nonanal a potential biomarker for the consumption of these foods. Although it occurs in several natural oils, it is produced commercially by hydroformylation of 1-octene (doi:10.1002/14356007.a01_321.pub2). Nonanal, an odorant of humans and birds, attracts Culex mosquitoes, which have extremely sensitive olfactory neurons in their antennae ( PMID: 19858490) for nonanal. Nonanal has been associated with several diseases such as pervasive developmental disorder not otherwise specified, autism (PMID: 24130822), Crohn's disease (PMID: 26071410), ulcerative colitis and non-alcoholic fatty liver disease (PMID: 23454028). 1-Nonaldehyde 1-Nonanal 1-Nonyl aldehyde Aldehyde C9 FEMA 2782 n-Nonaldehyde n-Nonan-1-al n-Nonanal N-Nonyl aldehyde N-Nonylaldehyde Nonaldehyde Nonanaldehyde Nonanoic aldehyde Nonoic aldehyde Nononal Nonyl aldehyde Nonylaldehyde Nonylic aldehyde Pelargonaldehyde Pelargonic aldehyde C9H18O 142.2386 142.135765198 nonanal nonanal 124-19-6 CCCCCCCCC=O InChI=1S/C9H18O/c1-2-3-4-5-6-7-8-9-10/h9H,2-8H2,1H3 GYHFUZHODSMOHU-UHFFFAOYSA-N 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. Medium-chain aldehydes Organic compounds Organic oxygen compounds Organooxygen compounds Carbonyl compounds Aliphatic acyclic compounds Alpha-hydrogen aldehydes Hydrocarbon derivatives Organic oxides Aliphatic acyclic compound Alpha-hydrogen aldehyde Hydrocarbon derivative Medium-chain aldehyde Organic oxide Fatty aldehydes an <i>n</i>-alkanal fatty aldehyde logp 3.81 ALOGPS logs -3.37 ALOGPS solubility 6.05e-02 g/l ALOGPS logp 2.99 ChemAxon pka_strongest_acidic 17.79 ChemAxon pka_strongest_basic -6.9 ChemAxon iupac nonanal ChemAxon average_mass 142.2386 ChemAxon mono_mass 142.135765198 ChemAxon smiles CCCCCCCCC=O ChemAxon formula C9H18O ChemAxon inchi InChI=1S/C9H18O/c1-2-3-4-5-6-7-8-9-10/h9H,2-8H2,1H3 ChemAxon inchikey GYHFUZHODSMOHU-UHFFFAOYSA-N ChemAxon polar_surface_area 17.07 ChemAxon refractivity 43.95 ChemAxon polarizability 18.54 ChemAxon rotatable_bond_count 7 ChemAxon acceptor_count 1 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::EiMs 1366 Specdb::CMs 2999 Specdb::CMs 27024 Specdb::CMs 29028 Specdb::CMs 29224 Specdb::CMs 29282 Specdb::CMs 29520 Specdb::CMs 102360 Specdb::CMs 102361 Specdb::CMs 102362 Specdb::CMs 102363 Specdb::CMs 102364 Specdb::CMs 172741 Specdb::NmrOneD 3497 Specdb::NmrOneD 3639 Specdb::MsIr 9713 Specdb::MsIr 9714 Specdb::MsMs 107883 Specdb::MsMs 107884 Specdb::MsMs 107885 Specdb::MsMs 174972 Specdb::MsMs 174973 Specdb::MsMs 174974 Specdb::MsMs 2470887 Specdb::MsMs 2470888 Specdb::MsMs 2470889 Specdb::MsMs 2495465 Specdb::MsMs 2495466 Specdb::MsMs 2495467 HMDB0059835 Beer Type 2 specific 0.00725 0.0095 0.005 mg/100 g Bilberry Type 1 specific Vaccinium myrtillus 180763 Black tea Type 1 50.0 50.0 50.0 mg/100 g Blackberry Type 1 specific Rubus Breakfast cereal Type 2 specific Broccoli Type 1 specific Brassica oleracea var. italica 36774 Caraway Type 1 specific Carum carvi 48032 0.9 0.9 0.9 mg/100 g Carrot Type 1 specific Daucus carota ssp. sativus 79200 0.04 0.08 0.0 mg/100 g Cauliflower Type 1 specific Brassica oleracea var. botrytis 3715 Celeriac Type 1 specific Apium graveolens var. rapaceum 278110 Celery stalks Type 1 specific Apium graveolens var. dulce 117781 Cereals and cereal products Unknown generic Ceylon cinnamon Type 1 specific Cinnamomum verum 128608 Chinese cinnamon Type 1 specific Cinnamomum aromaticum 119260 Citrus Unknown generic Common buckwheat Type 1 specific Fagopyrum esculentum 3617 Common grape Type 1 specific Vitis vinifera 29760 Common oregano Type 1 specific Origanum vulgare 39352 0.01 0.01 0.01 mg/100 g Common wheat Type 1 specific Triticum aestivum 4565 Coriander Type 1 specific Coriandrum sativum 4047 0.95 0.95 0.95 mg/100 g Corn Type 1 specific Zea mays 4577 4850.0 9700.0 0.0 mg/100 g Cucumber Type 1 specific Cucumis sativus 3659 Dill Type 1 specific Anethum graveolens 40922 Evergreen blackberry Type 1 specific Rubus laciniatus Fruits Unknown generic Garden tomato (var.) Type 1 specific Solanum lycopersicum var. lycopersicum 397755 Ginger Type 1 specific Zingiber officinale 94328 2.6 2.6 2.6 mg/100 g Green bean Type 1 specific Phaseolus vulgaris 3885 Green tea Type 1 50.0 50.0 50.0 mg/100 g Guava Type 1 specific Psidium guajava 120290 Herbal tea Type 1 50.0 50.0 50.0 mg/100 g Lemon Type 1 specific Citrus limon 2708 1.65 1.65 1.65 mg/100 g Lime Type 1 specific Citrus aurantiifolia 159033 2.0 2.0 2.0 mg/100 g Mandarin orange (Clementine, Tangerine) Type 1 specific Citrus reticulata 85571 0.45 0.45 0.45 mg/100 g Milk (Cow) Type 2 specific 0.205348 0.53 0.00145 mg/100 g Muskmelon Type 1 specific Cucumis melo 3656 Oat Type 1 specific Avena sativa 4498 Olive Type 1 specific Olea europaea 4146 Papaya Type 1 specific Carica papaya 3649 Pear Type 1 specific Pyrus communis 23211 Red tea Type 1 50.0 50.0 50.0 mg/100 g Red wine Type 2 20.07005 40.1 0.0401 mg/100 g Rocket salad (ssp.) Type 1 specific Eruca vesicaria ssp. sativa 29727 Root vegetables Unknown generic Roselle Type 1 specific Hibiscus sabdariffa 183260 Safflower Type 1 specific Carthamus tinctorius 4222 0.009 0.013 0.005 mg/100 g Sesame Type 1 specific Sesamum orientale 4182 Spearmint Type 1 specific Mentha spicata 29719 1.15 1.15 1.15 mg/100 g Sweet basil Type 1 specific Ocimum basilicum 39350 Sweet cherry Type 1 specific Prunus avium 42229 Sweet orange Type 1 specific Citrus sinensis 2711 1.3 1.3 1.3 mg/100 g Taco Type 2 specific 0.0 0.0 0.0 mg/100 g Tamarind Type 1 specific Tamarindus indica 58860 Tea Type 1 specific Camellia sinensis 4442 50.0 50.0 50.0 mg/100 g Tortilla Type 2 specific 0.0 0.0 0.0 mg/100 g Watermelon Type 1 specific Citrullus lanatus 3654 White wine Type 2 4.65465 9.3 0.0093 mg/100 g Wild carrot Type 1 specific Daucus carota 4039 0.08 0.08 0.08 mg/100 g aldehydic citrus fat fatty fishy fresh grapefruit green lime orange peel orris peely rose waxy Anti septic 603 A substance that kills or slows the growth of microorganisms, including bacteria, viruses, fungi and protozoans. Irritant 1055 Name 936 A substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell. Perfumery 1206 A substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell. Pesticide 1210 Strictly, a substance intended to kill pests. In common usage, any substance used for controlling, preventing, or destroying animal, microbiological or plant pests.