heptanal


Also found in: Medical.

heptanal

[′hep·tə‚nal]
(organic chemistry)
References in periodicals archive ?
As in the present research, volatile compounds such as heptanal, benzaldehyde, (E,E)-2,4-heptadienal and (E)-2-nonenal were reported (Table 2).
The key aroma-active compounds which were caused by or which increased after exposure of vitamin A and D premixes to fluorescent and LED light were 2-butenyl palmitate, beta-ionone, beta-damascone, hexanal and heptanal.
The minor compounds, accounting for 0.01% to 8.5% of the total volatile compounds, included propanal, butanal, 3-methyl butanal, pentanal, heptanal, benzaldehyde, octanal, nonanal, butane, carbon disulfide, 2-butene, n-pentane, hexane, heptane, octane, ethylacetate, 2-butanone, 2,3-butanedione, 3-hydroxy-2-butanone, 2-heptanone, 2,3-octanedione, dimethyl sulfide, ethanol, isopropyl alcohol, 1-pentanol, and 1,3,5-cycloheptatriene.
The researchers precisely determined the nature and concentrations of these compounds, and found heptanal, octanal and nonanal, which are known as aldehydes in chemistry, to be emitted at higher levels by children with malaria.
Xu, "Magnetic solid-phase extraction followed by high performance liquid chromatography for determination of hexanal and heptanal in human urine," Analytical Methods, vol.
Among these peaks, the major volatile compounds were 3-methylbutanal (7.24%), pentanal (5.74%), hexanal (20.11%), furan-2-carbaldehyde (25.23%), and heptanal (12.07%) [39].
Metabolomic markers Malondialdehyde 4-Hydroxyhexenal 4-Hydroxynonenal Hexanal Heptanal Oktanal Nonanal Decanal Undodecanal 3-Nitrotyrosine 8-Hydroxy-2'-deoxyguanosine 5-Hydroxymethyluracil o-Tyrosine 3-Chlorotyro sine 8-Isoprostane Leukotriene B4 Proteomic markers Leukotriene D4 Interleukin 6 Interleukin 8 Monocyte chemotactic protein-1 Epidermal growth factor Soluble transferrin receptor LG3 fragment of endorepellin Tumstatin Endostatin BOX 2: Urinary markers that differentiated all groups of subjects: group 1 (healthy controls), group 2 (IgAN patients), and group 3 (disease controls).
Dadas las pocas mediciones a nivel nacional y por la importancia de este tipo de sustancias, este estudio tuvo como objetivo determinar la concentracion del formaldehido, el acetaldehido, el propanal, el butanal, el hexanal y el heptanal, en el aire de la Reserva Biologica Monteverde y del Campus Omar Dengo de la Universidad Nacional, durante la epoca seca y transicion a la epoca lluviosa, debido a que tales lugares representan una zona boscosa y una zona urbana y, asi, comparar los dos escenarios.
2-Methylbutanoic acid 294 220 Heptanal 28 26 Pentanoic acid 1127 920 Octanal 51 42 Heptanonitrile n.d.
[7] reported cis-linalool oxide and heptanal as possible markers of Robinia honey, but they also found acetone, furfural, benzaldehyde, and 6-methyl 5- hepten-2-one.
Removal of aldehydes such as Hexanal and heptanal from head space can be performed by taste and odor control technology DUPONT (OTC) which is based on molecular sieve with pore size of about 5 nm.
The [beta]-adrenergic agonist isoproterenol increases the synchronized beating rate between muscle-derived stem cell (skeletal muscle) grafts and cardiomyocytes, and heptanal (a gap junction blocker) inhibits contraction and restricts individual cardiomyocytes to their intrinsic pacemaker frequency [124].