Hexahydroxybenzene triscarbonate is a chemical compound, an oxide of carbon with formula . Its molecular structure consists of a benzene core with the six hydrogen atoms replaced by three carbonate groups. It can be seen as a sixfold ester of hexahydroxybenzene (benzenehexol) and carbonic acid.

The compound was obtained by C. Nallaiah in 1984, as a tetrahydrofuran solvate. C. Nallaiah (1984), Synthesis of tetrahydroxy-1,4-benzoquinone biscarbonate and hexahydroxybenzene triscarbonate - new organic carbon oxidesTetrahedron, Volume 40, Issue 23, 1984, Pages 4897-4900

See also Tetrahydroxy-1,4-benzoquinone biscarbonate Tetrahydroxy-1,4-benzoquinone bisoxalate Hexahydroxybenzene trisoxalate

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