Found 1 items, similar to C5H4O2.
English → English (gcide) Definition: C5H4O2 Pyrone \Py`rone\, n. [G. pyron, an abbr. of pyrokoman.] (Org. Chem.) An unsaturated cyclic compound, C5H4O2, of which two varieties are known, [alpha] and [gamma]. [gamma]-pyrone is the parent substance of several natural yellow dyestuffs.