1.0 2010-04-08 22:06:22 UTC 2025-11-18 22:57:17 UTC FDB004728 N-Heneicosane Heneicosane, is a straight chain saturated hydrocarbon with 21 carbons that is a member of the class of compounds known as alkanes. Alkanes are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2, and therefore consisting entirely of hydrogen atoms and saturated carbon atoms. Thus, heneicosane is considered to be a hydrocarbon lipid molecule. Henicosane is a neutral, hydrophobic molecule that is insoluble in water. It exists as a clear, waxy solid. Heneicosane is a naturally occurring, waxy tasting compound that can be found in a number of food items such as orange bell pepper, yellow bell pepper, lemon balm, and pepper (c. annuum). Heneicosane is used as a pheromone by queen or king termites. It also attracts mosquitoes in the genus Aedes and can be used in mosquito baits (PMID: 24060842). Heneicosane Henicosane N-henicosane C21H44 296.5741 296.344301408 henicosane heneicosane 629-94-7 CCCCCCCCCCCCCCCCCCCCC InChI=1S/C21H44/c1-3-5-7-9-11-13-15-17-19-21-20-18-16-14-12-10-8-6-4-2/h3-21H2,1-2H3 FNAZRRHPUDJQCJ-UHFFFAOYSA-N belongs to the class of organic compounds known as alkanes. These are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms. Alkanes Organic compounds Hydrocarbons Saturated hydrocarbons Alkanes Aliphatic acyclic compounds Acyclic alkane Aliphatic acyclic compound Alkane Hydrocarbons an alkane long-chain alkane logp 9.98 ALOGPS logs -7.69 ALOGPS solubility 6.09e-06 g/l ALOGPS melting_point 40.5 oC logp 9.8 ChemAxon iupac henicosane ChemAxon average_mass 296.5741 ChemAxon mono_mass 296.344301408 ChemAxon smiles CCCCCCCCCCCCCCCCCCCCC ChemAxon formula C21H44 ChemAxon inchi InChI=1S/C21H44/c1-3-5-7-9-11-13-15-17-19-21-20-18-16-14-12-10-8-6-4-2/h3-21H2,1-2H3 ChemAxon inchikey FNAZRRHPUDJQCJ-UHFFFAOYSA-N ChemAxon polar_surface_area 0 ChemAxon refractivity 98.42 ChemAxon polarizability 44.09 ChemAxon rotatable_bond_count 18 ChemAxon acceptor_count 0 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::EiMs 1918 Specdb::CMs 1792 Specdb::CMs 29413 Specdb::CMs 29579 Specdb::CMs 29968 Specdb::CMs 37035 Specdb::CMs 130860 Specdb::CMs 138594 Specdb::NmrOneD 4224 Specdb::MsMs 45159 Specdb::MsMs 45160 Specdb::MsMs 45161 Specdb::MsMs 148809 Specdb::MsMs 148810 Specdb::MsMs 148811 Specdb::MsMs 2719029 Specdb::MsMs 2719030 Specdb::MsMs 2719031 Specdb::MsMs 2963358 Specdb::MsMs 2963359 Specdb::MsMs 2963360 HMDB0061782 Black elderberry Type 1 specific Sambucus nigra 4202 2300.0 2300.0 2300.0 mg/100 g Coconut Type 1 specific Cocos nucifera 13894 Common oregano Type 1 specific Origanum vulgare 39352 0.06 0.06 0.06 mg/100 g Green bell pepper Type 1 specific Capsicum annuum 4072 Kohlrabi Type 1 specific Brassica oleracea var. gongylodes 109379 Lemon balm Type 1 specific Melissa officinalis 39338 0.01 0.01 0.01 mg/100 g Linden Type 1 specific Tilia 64580 Orange bell pepper Type 1 specific Capsicum annuum 4072 Papaya Type 1 specific Carica papaya 3649 Pepper Type 1 specific Capsicum annuum 4072 Pepper (C. frutescens) Type 1 specific Capsicum annuum var. annuum 40321 Red bell pepper Type 1 specific Capsicum annuum 4072 Sunflower Type 1 specific Helianthus annuus 4232 Watermelon Type 1 specific Citrullus lanatus 3654 Yellow bell pepper Type 1 specific Capsicum annuum 4072 alkane waxy Pheromone 1214 A semiochemical used in olfactory communication between organisms of the same species eliciting a change in sexual or social behaviour.