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Molecular formula :

nature : names benzo - γ - pyron. Colorless acicular crystals. 59 ° C melting point. Soluble ethanol, ethyl ether, chloroform, benzene and hot water. May sublimation. Concentrated sulfuric acid soluble fluorescent purple. With potassium permanganate role in salicylic acid. O dihydroxyacetophenone and Ethyl in the presence of alkali condensation products via acid catalysis from closed-loop system. Benzo - γ - pyron derivatives widely exist in plants, and some colored material, it called for chromone mother.

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More Detailed Data:
1) 2-Methyl-3-hydroxy-.gamma.-pyranone;Maltol;3-hydroxy-2-methyl-4H-Pyran-4-one;2-methyl pyromeconic acid;2-methyl-3-hydroxy-4-pyrone;2-methyl-3-oxy-gamma-pyrone;3-hydroxy-2-methyl-4-pyrone;3-hydroxy-2-methyl-4h-pyran-4-one;3-hydroxy-2-methyl-gamma-pyrone;3-hydroxy-2-methyl-4h
2) dimethylchromone
3) 1-thiachromone
4) xanthone;xanthenone
5) trimethylchromone
6) dihydroxy chromone
7) 5,6-benzochromone
8) 7,8-benzochromone
9) 2-isopropylchromone
10) chromen;benzopyrans
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