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While 5,5-dimethylcyclohexane-1,3-dione is the IUPAC name for this molecule, it is also known as; 5,5-dimethyl-1,3-cyclohexane, cyclomethone, medon, methon, methode, 1,1-dimethyl-3,5-cyclohexanedione, dimethlydihydroresorcinol, but most commonly dimedone

Physical Properties

5,5-dimethylcyclohexane-1,3-dione usually comes in the form of a yellow crystal. It is stable under ambient conditions and soluble in water, as well as ethanol and methanol. It has a boiling point range of 147 - 150 oC (420 - 423 oK), at which point it decomposes. The molecule's molecular formula is (CH3)2C6H6(=O)2. From this the molecular weight (the weight of 6 * 1023 molecules) can be determined as 140 ((12 * 8) + (1 * 12) + (16 * 2)).

Uses in Chemistry

5,5-dimethylcyclohexane-1,3-dione is used in organic "wet" chemistry to determine whether a compound contains an aldehyde group. Cyclohexanediones in general can be used as catalyst in the formation of transition-metal complexes. Other uses include; applications in colourimetry, crystal chemistry and crystallography, luminescence and spectrophotometric analysis. It can also be used for chemistry involving organic compounds of low electrical resistance.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "5,5-dimethylcyclohexane-1,3-dione". A list of authors is available in Wikipedia.
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