Pterin

Japanese: プテリン
Pterin

2-amino-4-oxopteridine. C 6 H 5 N 5 O(163.14). It is found in Drosophila and human teeth. It is synthesized from 2,4,5-triaminopyrimidine and glyoxal. It is a pale yellow-green powder. Its melting point is over 350°C. It is easily soluble in acid and alkali, slightly soluble in water, and insoluble in ethanol and ether. It exhibits blue fluorescence (λ max 450 nm, pH 8). It is a decomposition product of folic acid, biopterin, etc. It is obtained from the wings of butterflies and other insects and fish scales. It includes isoxanthopterin (2-amino-4,7-dihydroxypteridine), which has blue fluorescence, leucopterin (2-amino-4,6,7-trihydroxypteridine), and xanthopterin (2-amino-4,6-dihydroxypteridine), which has yellow-green fluorescence. [CAS 2236-60-4]

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Japanese:

2-amino-4-oxopteridine.C6H5N5O(163.14).ショウジョウバエ,ヒトの歯などに存在する.2,4,5-トリアミノピリミジンとグリオキサールから合成される.淡黄緑色の粉末.融点350 ℃ 以上.酸,アルカリに易溶,水に微溶,エタノール,エーテルに不溶.青色の蛍光(λmax 450 nm,pH 8)を示す.葉酸,ビオプテリンなどの分解物である.チョウ,そのほかの昆虫類の羽や,魚のうろこから得られるものに,青色の蛍光をもつイソキサントプテリン(2-アミノ-4,7-ジヒドロキシプテリジン),ロイコプテリン(2-アミノ-4,6,7-トリヒドロキシプテリジン),黄緑色の蛍光をもつキサントプテリン(2-アミノ-4,6-ジヒドロキシプテリジン)などがある.[CAS 2236-60-4]

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