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aldehyde

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aldehyde

Any of a group of organic chemical compounds prepared by oxidation of primary alcohols, so that both the OH (hydroxyl) group and the adjacent carbon lose a hydrogen to give an oxygen joined by a double bond to a carbon atom (the aldehyde group, with the formula CHO).

Higher aldehydes are commonly used in perfumes.

The name is made up from alcohol dehydrogenation – that is, alcohol from which hydrogen has been removed. Aldehydes are usually liquids and include methanal, ethanal, benzaldehyde, formaldehyde, and citral.



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? Mentioned in ? References in periodicals archive
 
The Milky Way nebula, Sagittarius B2, has revealed data suggesting the presence of aldehyde molecules that typically assist in the formation of amino acids, and scientists have reported their discovery of glycolaldehyde, a simple sugar.
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Special methods are required to isolate and identify hydroperoxides, which are unstable and readily form the corresponding aldehyde.
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In the course of development, the group has discovered that two flavor elements, geraniol found in rose and vanillic aldehyde derived from vanilla, have higher emission efficiencies.
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