1.0 2010-04-08 22:06:38 UTC 2025-11-18 22:58:57 UTC FDB005344 Germacrene Germacrene, also known as (e,e)-germacra-1(10),4,7(11)-triene, is a member of the class of compounds known as germacrane sesquiterpenoids. Germacrane sesquiterpenoids are sesquiterpenoids having the germacrane skeleton, with a structure characterized by a cyclodecane ring substituted with an isopropyl and two methyl groups. Thus, germacrene is considered to be an isoprenoid lipid molecule. Germacrene can be found in turmeric, which makes germacrene a potential biomarker for the consumption of this food product. Germacrenes are a class of volatile organic hydrocarbons, specifically, sesquiterpenes. Germacrenes are typically produced in a number of plant species for their antimicrobial and insecticidal properties, though they also play a role as insect pheromones. Two prominent molecules are germacrene A and germacrene D . (-)-(7S)-germacrene-D (1E,5E)-germacra-1(10),4(15),5-triene C15H24 204.3511 204.187800768 (1E,5E)-1,5-dimethyl-8-(propan-2-ylidene)cyclodeca-1,5-diene germacrene B 15423-57-1 CC(C)=C1CC\C(C)=C\CC\C(C)=C\C1 InChI=1S/C15H24/c1-12(2)15-10-8-13(3)6-5-7-14(4)9-11-15/h6,9H,5,7-8,10-11H2,1-4H3/b13-6+,14-9+ GXEGJTGWYVZSNR-SJRHNVSNSA-N belongs to the class of organic compounds known as germacrane sesquiterpenoids. These are sesquiterpenoids having the germacrane skeleton, with a structure characterized by a cyclodecane ring substituted with an isopropyl and two methyl groups. Germacrane sesquiterpenoids Organic compounds Lipids and lipid-like molecules Prenol lipids Sesquiterpenoids Aliphatic homomonocyclic compounds Branched unsaturated hydrocarbons Cyclic olefins Unsaturated aliphatic hydrocarbons Aliphatic homomonocyclic compound Branched unsaturated hydrocarbon Cyclic olefin Germacrane sesquiterpenoid Hydrocarbon Olefin Unsaturated aliphatic hydrocarbon Unsaturated hydrocarbon Germacrane sesquiterpenoids Germacrane sesquiterpenoids Germacrenes germacrene B logp 5.87 ALOGPS logs -3.51 ALOGPS solubility 6.30e-02 g/l ALOGPS logp 4.78 ChemAxon iupac (1E,5E)-1,5-dimethyl-8-(propan-2-ylidene)cyclodeca-1,5-diene ChemAxon average_mass 204.3511 ChemAxon mono_mass 204.187800768 ChemAxon smiles CC(C)=C1CC\C(C)=C\CC\C(C)=C\C1 ChemAxon formula C15H24 ChemAxon inchi InChI=1S/C15H24/c1-12(2)15-10-8-13(3)6-5-7-14(4)9-11-15/h6,9H,5,7-8,10-11H2,1-4H3/b13-6+,14-9+ ChemAxon inchikey GXEGJTGWYVZSNR-SJRHNVSNSA-N ChemAxon polar_surface_area 0 ChemAxon refractivity 71.09 ChemAxon polarizability 25.57 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 0 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 61302 Specdb::MsMs 61303 Specdb::MsMs 61304 Specdb::MsMs 117810 Specdb::MsMs 117811 Specdb::MsMs 117812 Specdb::MsMs 3601700 Specdb::MsMs 3601701 Specdb::MsMs 3601702 Specdb::MsMs 3601703 Specdb::MsMs 3601704 Specdb::MsMs 3601705 Carrot Type 1 specific Daucus carota ssp. sativus 79200 Turmeric Type 1 specific Curcuma longa 136217 earth spice wood