1.0 2010-04-08 22:08:07 UTC 2025-11-18 23:11:10 UTC FDB008527 Trimethylpyrazine Found in many foodstuffs e.g. asparagus, baked potato, wheat bread, Swiss cheese, coffee, black tea, roasted filbert and peanut, soybean etc. Flavouring ingredient 2,3,5-TRIMETHYL PYRAZINE 2,3,5-Trimethyl-pyrazine 2,3,5-Trimethylpyrazine 2,3,6-Trimethylpyrazine FEMA 3244 pyrazine, 2,3,5-trimethyl Pyrazine, 2,3,5-trimethyl- Pyrazine, trimethyl- Trimethyl-pyrazine C7H10N2 122.1677 122.08439833 2,3,5-trimethylpyrazine pyrazine, trimethyl- 14667-55-1 CC1=NC(C)=C(C)N=C1 InChI=1S/C7H10N2/c1-5-4-8-6(2)7(3)9-5/h4H,1-3H3 IAEGWXHKWJGQAZ-UHFFFAOYSA-N belongs to the class of organic compounds known as pyrazines. Pyrazines are compounds containing a pyrazine ring, which is a six-member aromatic heterocycle, that consists of two nitrogen atoms (at positions 1 and 4) and four carbon atoms. Pyrazines Organic compounds Organoheterocyclic compounds Diazines Pyrazines Aromatic heteromonocyclic compounds Azacyclic compounds Heteroaromatic compounds Hydrocarbon derivatives Organonitrogen compounds Organopnictogen compounds Aromatic heteromonocyclic compound Azacycle Heteroaromatic compound Hydrocarbon derivative Organic nitrogen compound Organonitrogen compound Organopnictogen compound Pyrazine logp 1.11 ALOGPS logs -0.37 ALOGPS solubility 5.16e+01 g/l ALOGPS logp -0.068 ChemAxon pka_strongest_basic 2.08 ChemAxon iupac 2,3,5-trimethylpyrazine ChemAxon average_mass 122.1677 ChemAxon mono_mass 122.08439833 ChemAxon smiles CC1=NC(C)=C(C)N=C1 ChemAxon formula C7H10N2 ChemAxon inchi InChI=1S/C7H10N2/c1-5-4-8-6(2)7(3)9-5/h4H,1-3H3 ChemAxon inchikey IAEGWXHKWJGQAZ-UHFFFAOYSA-N ChemAxon polar_surface_area 25.78 ChemAxon refractivity 35.52 ChemAxon polarizability 13.94 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 2 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::EiMs 1559 Specdb::CMs 3060 Specdb::CMs 28912 Specdb::CMs 29391 Specdb::CMs 100971 Specdb::CMs 100972 Specdb::CMs 159657 Specdb::MsIr 4939 Specdb::MsIr 4940 Specdb::MsMs 13115 Specdb::MsMs 13116 Specdb::MsMs 13117 Specdb::MsMs 19787 Specdb::MsMs 19788 Specdb::MsMs 19789 Specdb::MsMs 1476821 Specdb::MsMs 1476822 Specdb::MsMs 1476823 Specdb::MsMs 1476824 Specdb::MsMs 1476825 Specdb::MsMs 1476826 Specdb::MsMs 1476827 Specdb::MsMs 2734130 Specdb::MsMs 2734131 Specdb::MsMs 2734132 Specdb::MsMs 2971740 Specdb::MsMs 2971741 Specdb::MsMs 2971742 Specdb::NmrOneD 3839 Specdb::NmrOneD 4106 Specdb::NmrOneD 165809 Specdb::NmrOneD 165810 Specdb::NmrOneD 165811 Specdb::NmrOneD 165812 Specdb::NmrOneD 165813 Specdb::NmrOneD 165814 Specdb::NmrOneD 165815 Specdb::NmrOneD 165816 Specdb::NmrOneD 165817 Specdb::NmrOneD 165818 Specdb::NmrOneD 165819 Specdb::NmrOneD 165820 Specdb::NmrOneD 165821 Specdb::NmrOneD 165822 Specdb::NmrOneD 165823 Specdb::NmrOneD 165824 Specdb::NmrOneD 165825 Specdb::NmrOneD 165826 Specdb::NmrOneD 165827 Specdb::NmrOneD 165828 HMDB31844 #<Reference:0x000055ce324c1890> #<Reference:0x000055ce324c16d8> #<Reference:0x000055ce324c1520> #<Reference:0x000055ce324c1368> #<Reference:0x000055ce324c11b0> #<Reference:0x000055ce324c0ff8> #<Reference:0x000055ce324c0e40> #<Reference:0x000055ce324c0c88> #<Reference:0x000055ce324c0ad0> #<Reference:0x000055ce324c0918> #<Reference:0x000055ce324c0760> #<Reference:0x000055ce324c05a8> #<Reference:0x000055ce324c03f0> #<Reference:0x000055ce324c0238> #<Reference:0x000055ce324c0080> #<Reference:0x000055ce324bfe78> Anatidae Type 1 specific Anatidae 8830 Arabica coffee Type 1 specific Coffea arabica 13443 Asparagus Type 1 specific Asparagus officinalis 4686 Beefalo Type 1 specific Bos taurus X Bison bison 297284 Bison Type 1 specific Bison bison 9901 Black tea Type 1 Breakfast cereal Type 2 specific Buffalo Type 1 specific Bubalus bubalis 89462 Cattle (Beef, Veal) Type 1 specific Bos taurus 9913 Cereals and cereal products Unknown generic Chicken Type 1 specific Gallus gallus 9031 Coconut Type 1 specific Cocos nucifera 13894 Coffee and coffee products Unknown generic Columbidae (Dove, Pigeon) Type 1 specific Columbidae 8930 Deer Type 1 specific Cervidae 9850 Domestic goat Type 1 specific Capra aegagrus hircus 9925 Domestic pig Type 1 specific Sus scrofa domestica 9825 Elk Type 1 specific Cervus canadensis 1574408 Emu Type 1 specific Dromaius novaehollandiae 8790 European rabbit Type 1 specific Oryctolagus 9984 Green bell pepper Type 1 specific Capsicum annuum 4072 Green tea Type 1 Green vegetables Unknown generic Greylag goose Type 1 specific Anser anser 8843 Guinea hen Type 1 specific Numida meleagris 8996 Herbal tea Type 1 Horse Type 1 specific Equus caballus 9796 Kohlrabi Type 1 specific Brassica oleracea var. gongylodes 109379 0.006 0.006 0.006 mg/100 g Mallard duck Type 1 specific Anas platyrhynchos 8839 Milk and milk products Unknown generic Mountain hare Type 1 specific Lepus timidus 62621 Mule deer Type 1 specific Odocoileus 9871 Mung bean Type 1 specific Vigna radiata 157791 Nuts Unknown generic Orange bell pepper Type 1 specific Capsicum annuum 4072 Ostrich Type 1 specific Struthio camelus 8801 Pepper Type 1 specific Capsicum annuum 4072 Pheasant Type 1 specific Phasianus colchicus 9054 Potato Type 1 specific Solanum tuberosum 4113 Pulses Unknown generic Quail Type 1 specific Phasianidae 9005 Rabbit Type 1 specific Leporidae 9979 Red bell pepper Type 1 specific Capsicum annuum 4072 Red tea Type 1 Robusta coffee Type 1 specific Coffea canephora 49390 Rock ptarmigan Type 1 specific Lagopus muta 64668 Sheep (Mutton, Lamb) Type 1 specific Ovis aries 9940 Soy bean Type 1 specific Glycine max 3847 Squab Type 1 specific Columba 8931 Tea Type 1 specific Camellia sinensis 4442 Tortilla chip Type 2 specific Turkey Type 1 specific Meleagris gallopavo 9103 Velvet duck Type 1 specific Melanitta fusca 371864 Wild boar Type 1 specific Sus scrofa 9823 Yellow bell pepper Type 1 specific Capsicum annuum 4072 cocoa earthy hazelnut must musty nutty peanut potato powdery roast roasted