1.0 2010-04-08 22:06:46 UTC 2025-11-18 22:59:36 UTC FDB005613 Pterin Pterin is a chemical compound composed of a pyrazine ring and a pyrimidine ring; Pterin is a heterocyclic compound composed of a pyrazine ring and a pyrimidine ring (a pteridine ring system); the pyrimidine ring has a carbonyl oxygen and an amino group. Several tautomers of pterin exist and are shown below. As a group, pterins are compounds that are derivatives of 2-amino-4-oxopteridine, with additional functional groups attached to the pyrazine ring.; the pyrimidine ring has a carbonyl oxygen and an amino group. Several tautomers of pterin exist and are shown below. Pterin belongs to the pteridine family of heterocycles. -- Wikipedia. Pterin is found in soy bean. 2-amino-1H-pteridin-4-one 2-amino-3H-pteridin-4-one 2-Amino-4-hydroxypteridine 2-Amino-4-oxodihydropteridine 2-Amino-4-oxopteridine 2-amino-4-pteridinol 2-Amino-4-pteridone 2-Amino-4(1H)-pteridinone 2-Amino-4(3H)-pteridinone 2-amino-Quinonoid dihydropterin 2-aminopteridin-4-ol 2-Aminopteridin-4-one 2-aminopteridin-4(1H)-one 2-aminopteridin-4(3H)-one 4-Oxo-2-aminopteridine 4-Oxopterin 4(1H)-Pteridinone, 2-amino- 4(3H)-pteridinone, 2-amino- H2-pterin Pteridoxamine Pterin (van) Pterine Quinonoid dihydropterin, 2-amino- C6H5N5O 163.1368 163.049409807 2-amino-3,4-dihydropteridin-4-one 2-amino-4-oxopteridine 2236-60-4 NC1=NC2=NC=CN=C2C(=O)N1 InChI=1S/C6H5N5O/c7-6-10-4-3(5(12)11-6)8-1-2-9-4/h1-2H,(H3,7,9,10,11,12) HNXQXTQTPAJEJL-UHFFFAOYSA-N belongs to the class of organic compounds known as pterins and derivatives. These are polycyclic aromatic compounds containing a pterin moiety, which consist of a pteridine ring bearing a ketone and an amine group to form 2-aminopteridin-4(3H)-one. Pterins and derivatives Organic compounds Organoheterocyclic compounds Pteridines and derivatives Pterins and derivatives Aromatic heteropolycyclic compounds Aminopyrimidines and derivatives Azacyclic compounds Heteroaromatic compounds Hydrocarbon derivatives Organic oxides Organooxygen compounds Organopnictogen compounds Primary amines Pyrazines Pyrimidones Vinylogous amides Amine Aminopyrimidine Aromatic heteropolycyclic compound Azacycle Heteroaromatic compound Hydrocarbon derivative Organic nitrogen compound Organic oxide Organic oxygen compound Organonitrogen compound Organooxygen compound Organopnictogen compound Primary amine Pterin Pyrazine Pyrimidine Pyrimidone Vinylogous amide a pterin pterin logp -0.86 ALOGPS logs -2.04 ALOGPS solubility 1.49e+00 g/l ALOGPS logp -0.96 ChemAxon pka_strongest_acidic 10 ChemAxon pka_strongest_basic -1.8 ChemAxon iupac 2-amino-3,4-dihydropteridin-4-one ChemAxon average_mass 163.1368 ChemAxon mono_mass 163.049409807 ChemAxon smiles NC1=NC2=NC=CN=C2C(=O)N1 ChemAxon formula C6H5N5O ChemAxon inchi InChI=1S/C6H5N5O/c7-6-10-4-3(5(12)11-6)8-1-2-9-4/h1-2H,(H3,7,9,10,11,12) ChemAxon inchikey HNXQXTQTPAJEJL-UHFFFAOYSA-N ChemAxon polar_surface_area 93.26 ChemAxon refractivity 41.82 ChemAxon polarizability 14.46 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 5 ChemAxon donor_count 2 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::NmrTwoD 1490 Specdb::CMs 19631 Specdb::CMs 130955 Specdb::CMs 138689 Specdb::MsIr 866 Specdb::MsIr 867 Specdb::MsIr 868 Specdb::MsMs 1141 Specdb::MsMs 1142 Specdb::MsMs 1143 Specdb::MsMs 309670 Specdb::MsMs 309671 Specdb::MsMs 309672 Specdb::MsMs 354175 Specdb::MsMs 354176 Specdb::MsMs 354177 Specdb::MsMs 451982 Specdb::MsMs 2226903 Specdb::MsMs 2227829 Specdb::MsMs 2229225 Specdb::MsMs 2230210 Specdb::MsMs 2231528 Specdb::MsMs 2232686 Specdb::MsMs 2233944 Specdb::MsMs 2234973 Specdb::MsMs 2322934 Specdb::MsMs 2322935 Specdb::MsMs 2322936 Specdb::MsMs 2616471 Specdb::MsMs 2616472 Specdb::MsMs 2616473 Specdb::NmrOneD 1546 Specdb::NmrOneD 145410 Specdb::NmrOneD 145411 Specdb::NmrOneD 145412 Specdb::NmrOneD 145413 Specdb::NmrOneD 145414 Specdb::NmrOneD 145415 Specdb::NmrOneD 145416 Specdb::NmrOneD 145417 Specdb::NmrOneD 145418 Specdb::NmrOneD 145419 Specdb::NmrOneD 145420 Specdb::NmrOneD 145421 Specdb::NmrOneD 145422 Specdb::NmrOneD 145423 Specdb::NmrOneD 145424 Specdb::NmrOneD 145425 Specdb::NmrOneD 145426 Specdb::NmrOneD 145427 Specdb::NmrOneD 145428 Specdb::NmrOneD 145429 HMDB00802 18265 Anatidae Type 1 specific Anatidae 8830 Beefalo Type 1 specific Bos taurus X Bison bison 297284 Bison Type 1 specific Bison bison 9901 Buffalo Type 1 specific Bubalus bubalis 89462 Cattle (Beef, Veal) Type 1 specific Bos taurus 9913 Chicken Type 1 specific Gallus gallus 9031 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 Greylag goose Type 1 specific Anser anser 8843 Guinea hen Type 1 specific Numida meleagris 8996 Horse Type 1 specific Equus caballus 9796 Mallard duck Type 1 specific Anas platyrhynchos 8839 Mountain hare Type 1 specific Lepus timidus 62621 Mule deer Type 1 specific Odocoileus 9871 Ostrich Type 1 specific Struthio camelus 8801 Pheasant Type 1 specific Phasianus colchicus 9054 Quail Type 1 specific Phasianidae 9005 Rabbit Type 1 specific Leporidae 9979 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 0.0052 0.0052 0.0052 mg/100 g Squab Type 1 specific Columba 8931 Turkey Type 1 specific Meleagris gallopavo 9103 Velvet duck Type 1 specific Melanitta fusca 371864 Wild boar Type 1 specific Sus scrofa 9823