aldehyde

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aldehyde

 [al´dĕ-hīd]
an organic compound containing the aldehyde functional group (-CHO); that is, one with a carbonyl group (C=O) located at one end of the carbon chain.

al·de·hyde

(al'dĕ-hīd),
A compound containing the radical -CH=O, reducible to an alcohol (CH2OH) and oxidizable to a carboxylic acid (COOH), for example, acetaldehyde.

aldehyde

/al·de·hyde/ (al´dĕ-hīd)
1. any of a class of organic compounds containing the group —CHO, i.e., one with a carbonyl group (CdbondO) located at one end of the carbon chain.
2. a suffix used to denote a compound occurring in aldehyde conformation.

aldehyde

[al′dəhīd′]
Etymology: Ar, alkohl + L, dehydrogenatum, dehydrogenated
any of a large category of organic compounds derived from the oxidation of a corresponding primary alcohol, as in the conversion of ethyl alcohol to acetaldehyde, also known as ethanal. Each aldehyde is characterized by a carbonyl group (─CO─) attached directly to a hydrogen (─CHO) in its formula and can be converted into a corresponding acid by oxidation, as in the conversion of acetaldehyde to acetic acid.

aldehyde

An organic compound with a formyl group (R-CHO), which is double-bonded to an O2 (i.e., a carbonyl group, C=O), single-bonded to a hydrogen and single-bonded to another group (e.g., methane, benzene, hydrogen, etc.). The aldehydes in some essential oils contribute to their pleasant odoor, including vanillin, cilantro and cinnamaldehyde.

Example
Acetaldehyde (CH3CHO), butyraldehyde (CH3(CH2)2CHO).

al·de·hyde

(al'dĕ-hīd)
A compound containing the radical -CH=O, reducible to an alcohol (-CH2OH), oxidizable to a carboxylic acid (-COOH); e.g., acetaldehyde.

aldehyde

A product of dehydrogenated (metabolized) alcohol, hence the name. Aldehydes cause most of the toxic effects of bibulous overindulgence (hangover).

aldehyde,

n hydrocarbon characterized by strong scent; antiviral, antiinflammatory, and soothing properties. Can irritate skin if administered improperly.
Enlarge picture
Aldehyde.

al·de·hyde

(al'dĕ-hīd)
A compound containing the radical -CH=O, reducible to an alcohol (-CH2OH), oxidizable to a carboxylic acid (-COOH); e.g., acetaldehyde.

aldehyde (al´dəhīd´),

n a large category of organic compounds derived from a corresponding alcohol by the removal of two hydrogen atoms, as in the conversion of ethyl alcohol to acetaldehyde.

aldehyde

an organic compound containing the aldehyde functional group (−CHO); that is, one with a carbonyl group (C=O) located at one end of the carbon chain. Aldehydes are formed in meat during the rancidification of fat and in the degradation of alcohols in biological materials. They have an acrid unpleasant taste and are toxic if taken in sufficient quantities. Some aldehydes (formaldehyde and glutaraldehyde) are used as disinfectants and fixatives.
References in periodicals archive ?
The alkoxy radicals formed (see reaction 13) have a high tendency to undergo [beta]-scission, thus forming hexanal and pentanal.
The head-space GC-MS data for the Co-EH-catalyzed EL oxidation reaction show that constant hexanal and pentanal formation takes place, a sure sign of [beta]-scission reactions.
Since pentanal showed the most sensitive response (the steepest slopes) with change of TVOC emissions, it may be used for the prediction of TVOC emissions for practical purposes.
Since pentanal showed the most sensitive response with the change of TVOC emissions, it may be used for the prediction of TVOC emissions for practical purposes.
Under certain conditions, unsaturated fatty acids can oxidize to volatile aldehydes such as hexanal and pentanal compounds, which are known to cause odor problems (Risholm-Sundman et al.
The 3-week-old pellet sample emitted about 28 times more pentanal and 8 times more hexanal than the reference pellets.
RSM-press hexanal and pentanal quadratic model coefficients.
Emissions of small straight-chain aldehydes, such as hexanal, pentanal, heptanal, octanal, and nonanal, generally exceeded emissions of other compounds and accounted for more than 50 percent of total VOC emissions.