Also known as 2,3,4,6-tetrahydroxybenzocyclohepten-5-one, 2,3,4,6-tetrahydroxy-5H-benzocycloheptene-5-one, purpurogalline
Purpurogallin is an aglycone natural product. It is an orange-red solid that is soluble in polar organic solvents but not in water. Its glycoside (ether-linked to sugar), called dryophantin, is found in nutgalls and oak barks. Purpurogallin can be prepared by oxidation of pyrogallol with sodium periodate.
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Purpurogallin, C11H8 O5, är en organisk förening med tropolonstruktur.
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