C6H4O5
The molecular formula C6H4O5 may refer to: *2,5-Furandicarboxylic acid * 2,4-Furandicarboxylic acid * 3,4-Furandicarboxylic acid *Trihydroxybenzoquinone ** 2,3,5-Trihydroxy-1,4-benzoquinone ** 3,4,5-Trihydroxy-1,2-benzoquinone ** 3,4,6-Trihydroxy-1,2-benzoquinone See also * Hydroxybenzoquinone A hydroxybenzoquinone (formula: ) is any of several organic compounds that can be viewed as derivatives of a benzoquinone through replacement of one hydrogen atom (H) by a hydroxyl group (-OH). In general, the term may mean any benzoquinone derivat ...

2,5-Furandicarboxylic Acid
2,5-Furandicarboxylic acid (FDCA) is an organic chemical compound consisting of two carboxylic acid groups attached to a central furan ring. It was first reported as ''dehydromucic acid'' by Rudolph Fittig and Heinzelmann in 1876, who produced it via the action of concentrated hydrobromic acid upon mucic acid. It can be produced from certain carbohydrates and as such is a renewable resource, it was identified by the US Department of Energy as one of 12 priority chemicals for establishing the “green” chemistry industry of the future. Furan-2,5-dicarboxylic acid (FDCA) has been suggested as an important renewable building block because it can substitute for terephthalic acid (PTA) in the production of polyesters and other current polymers containing an aromatic moiety.T. Werpy, G. Petersen: ''Top Value Added Chemicals from Biomass. Volume I – Results of Screening for Potential Candidates from Sugars and Synthesis Gas.'' Produced by the Staff at Pacific Northwest National Lab ...
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Molecular Formula
In chemistry, a chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and ''plus'' (+) and ''minus'' (−) signs. These are limited to a single typographic line of symbols, which may include subscripts and superscripts. A chemical formula is not a chemical name, and it contains no words. Although a chemical formula may imply certain simple chemical structures, it is not the same as a full chemical structural formula. Chemical formulae can fully specify the structure of only the simplest of molecules and chemical substances, and are generally more limited in power than chemical names and structural formulae. The simplest types of chemical formulae are called '' empirical formulae'', which use letters and numbers indicating the numerical ''proportions'' of atom ...
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