(n.) Any one of five hydrocarbons, C6H14, of the paraffin series. They are colorless, volatile liquids, and are so called because the molecule has six carbon atoms.
Example Sentences:
(1) It was readily soluble, however, in nonpolar solvents such as n-hexane and chloroform.
(2) The UE and KE fractions were then separated by silicic acid column chromatography with a stepwise elution method using ether-hexane.
(3) We have investigated the whole-body dermal penetration of styrene, xylene, toluene, perchloroethylene, benzene, halothane, hexane, and isoflurane in rats and compared the permeability constants with available human studies on vapor penetration.
(4) Simple hexane and formic acid-hexane extraction methods, involving pretreatment of the serum with formic acid, were compared by radiometric and by paper chromatographic and gas chromatographic analysis.
(5) Identification of this new n-hexane metabolite included enzymatic hydrolysis of the excreted glucuronide, derivatization of the keto group with O-methylhydroxylamine, and subsequent GC-MS analysis.
(6) TCDD is extracted from alkaline solution with n-hexane and purified by column chromatography on silica gel and Florisil.
(7) Luminescence yield, absorption spectra and molecular weight dependence of chlorophyll in methylethylketone and n-hexane on concentration was investigated.
(8) Sulfamoyldapsone was extracted from tissues with acetonitrile saturated with n-hexane.
(9) Stereoselectivity of several triacylglycerol lipases (EC 3.1.1.3) has been investigated in the enzymatic esterification of rac-1-O-octadecylglycerol with oleic acid in the presence of organic solvents, such as hexane.
(10) Nerve damage, paralysis and cancer The solvent n-hexane is used to clean electronic displays, including Apple’s iPhone.
(11) Extractions by the Twisselmann method give increasing yields in the order n-pentane, hexane, and n-heptane.
(12) A xanthone was isolated from the hexane fraction of the Swertia chirayita plant and identified as 1,8-dihydroxy-3,5-dimethoxyxanthone (swerchirin).
(13) Leaching the lyophilized mitochondrial fraction with either hexane or acetone increased substantially the yields of the metabolites.
(14) The derivative, pentafluorophenyloxazolidine, is readily extracted from plasma into a small volume of hexane.
(15) Treatment of this ketone with either phenyllithium or phenylamagnesium bromide in ether at room temperature followed by solvolysis of the resulting alcohol in a mixture of trifluoroacetic acid, sodium azide, and chloroform gave a mixture of cis- and trans-3-azido-3-phenylbicyclo[3.1.0]hexanes.
(16) This method is based on an hexane extraction followed by column chromatographic clean-up and preseparation as well as qualitative and quantitative gas chromatographic analysis.
(17) Imexon (4-imino-1,4-diazobicyclo-3.1.0-hexan-2-one) was moderately effective in the treatment of a retroviral infection in a genetically defined murine model.
(18) Extraction of raw soybeans with hexane allowed production of 20-fold more aflatoxins, but levels were still lower than those found on rice or corn.
(19) Affirmative results were obtained to prove that diffusion-absorption on carbon-desorption dosimetry is applicable to monitor exposure to mixed vapors of organic solvents (n-hexane:ethyl acetate:toluene=1:4:1).
(20) Testosterone was estimated by the enzyme immunoassay after extraction with hexan: ether (4:1) for serum from men and additional thin layer chromatographic step for serum from women.
Hexyl
Definition:
(n.) A compound radical, C6H13, regarded as the essential residue of hexane, and a related series of compounds.
Example Sentences:
(1) In advanced Lewis lung carcinoma, the 1-hexyl derivative was active by either intermittent or daily administration, but the 1-phenethyl derivative was active only by daily administration.
(2) 3-Hexyl-3',4'-dihydroxy-5,7, 8-trimethoxyflavone inhibited 5-lipoxygenase with an IC50 value of 58 nM.
(3) The binding of [3H]TCP (N-[1-(2-thienyl)cyclo-hexyl]-3,4-piperidine) to the NMDA receptor remained unchanged in all the experimental groups tested.
(4) The gels were exposed to beta-amylase in solution, and the resulting adsorbates indicated a monotonic increase in adsorption capacity with an increasing hexyl-content.
(5) The fluorescence of the dye CC-6 [(3-hexyl-2-(3-hexyl-2-benzoxazolinylidene)-1-propenyl)-benzoxazolium iodide] has been shown to indicate Donnan potentials in rabbit skeletal muscle myofibrils.
(6) The increase in equilibrium constant from ethyl to n-hexyl isocyanide is accounted for by a favorable partitioning of the ligand into a hydrophobic heme coordination site.
(7) The activities (EC50) of (-)-1-N-methyl, (-)-1-N-ethyl, and (-)-1-N-butyl indolactam V (10, 11, and 12) were about 5 times weaker than that of (-)-indolactam V (1), while (-)-1-N-hexyl and (-)-1-N-octyl indolactam V (13 and 14) were even less active, suggesting that the free imino group of the indole ring in (-)-indolactam V (1) plays an important role in the activity, and that the activity cannot be enhanced by alkylation at the N-1 position of (-)-indolactam V (1).
(8) The ferrochelatase-inhibitory activity of the 4-butyl, 4-pentyl, 4-hexyl, and 4-cyclopropylmethyl analogues of DDC was considered to be due to the formation of the corresponding N-alkylporphyrins.
(9) The hexyl, tetradecyl, and oleyl cholesteryl ethers were synthesized in yields varying between 55 and 70%.
(10) All of them except N-isobutyl-NNG and N-hexyl-NNG were carcinogenic, but N-ethyl-NNG followed by N-methyl-NNG were stronger carcinogens than those with longer alkyl chains.
(11) Two particular compounds, CV-3988 (rac-3-(N-n-octadecylcarbamoyloxy)-2-methoxypropyl-2-thiazolioethyl++ + phosphate) and U66985 (1-O-octadecyl-2-acetyl-sn-glycero-3-phosphoric acid-6'-trimethylammonium-hexyl ester) emerged as particularly active and effective inhibitors.
(12) Standard curves of several proteins were similar in the absence or presence of 0.1-0.5% hexyl-beta-D-glucopyranoside.
(13) Pentifylline (1-hexyl-3,7-dimethylxanthine equals SK 7, the main active principle in Cosaldon) inhibits the soluble and the particulate cyclic AMP phosphodiesterases (PDE I and PDE II) from bovine platelets.
(14) Of a variety of alkylcyclohexane and alkylbenzene derivatives tested, only hexyl- or heptylbenzene and octyl- or decylcyclohexane were effectively emulsified by EF-RAG.
(15) To characterize the effects of a new calcium antagonist of the dihydropyridine type, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic++ + acid methyl 6-(5-phenyl-3-pyrazolyloxy) hexyl ester (CV-159) on the cardiovascular system, experiments were performed in the anesthetized open-chest dogs and in the heart-lung preparation with a support dog in comparison with those of nicardipine.
(16) Results obtained after the administration of 3,7-Dimethyl-1-(5-oxo-hexyl)-xanthine (Pentoxifylline, Trental) in the treatment of 49 cases suffering from occlusion of the retinal vessels and 23 cases with vascular occlusion in the N. opticus are reported and commented with a view to the bad prognosis of these serious disorders, 55% of the patients showing definite improvement of visual acuity.
(17) The remaining 5 compounds, a family of 2,6-tert-butyl phenols with substitutions at position 4 of hydrogen, methyl (BHT), ethyl, butyl, hexyl, or octyl, afforded effective membrane protection to cold shock.
(18) The effects of cis-3,4 dichloro-N-2-(1-pyrrolidinyl)cyclo-hexyl-benzamide (U-54494A), an anticonvulsant related to kappa opioids, were studied in vitro on the extracellular electrical activity of the CA1 region of slices of hippocampus in the rat.
(19) Bamifylline displaced 3H-Cyclo-hexyl-adenosine and 3H-Diethyl-8-phenyl-xanthine with a potency similar to that of 8-phenyl-theophylline, suggesting a high activity on A1-receptor subtype.
(20) The ability of 3-aminopropyl(diethyoxymethyl)phosphinic acid (CGP 35348), 3-aminopropyl (hexyl)phosphinic acid (3-APHPA) and phaclofen to antagonize these responses was assessed.