نتایج جستجو برای: aminophenol
تعداد نتایج: 862 فیلتر نتایج به سال:
We have selected and spatially separated the two conformers of 3-aminophenol (C6H7NO) present in a molecular beam. Analogous to the separation of ions based on their mass-to-charge ratios in a quadrupole mass filter, the neutral conformers are separated based on their different mass-to-dipole-moment ratios in an ac electric quadrupole selector. For a given ac frequency, the individual conformer...
A procedure for separation/preconcentration of para-aminophenol (PAP) in pharmaceutical formulation, based on cloud point extraction (CPE) as a prior step to determination by UV-Vis spectrophotometry has been developed. The analyte reacted with 4-dimethylamino benzaldehyde (DAB) in acidic media to form a shift base, which were separated and preconcentrated in a mixed micelle of the anionic surf...
Two earlier crystal structure predictions (CSP) of aminophenol compounds are checked against experimental structure determinations. One of the predictions classified originally as ‘‘good’’ is verified and is now seen to be somewhat correct. The other prediction, which was classified earlier as ‘‘unclear’’, is incorrect. The two experimental crystal structures are characterized by small and larg...
A 47-year-old woman, after being exposed to nitrobenzene for 17 months, was admitted to hospital because of headache, nausea, cyanosis, and general weakness. Laboratory study revealed, in addition to methaemoglobinaemia, the presence of p-aminophenol as well as p-nitrophenol in the urine. Both compounds gradually disappeared from the urine during the two weeks after she was removed from the tox...
In the present study, a novel series of N-[4-(2-piperidine-1-yl-ethoxy) phenyl]acetamides were synthesized from 4-aminophenol and characterised by IR, H-NMR, Mass spectral studies and elemental analysis. The antimicrobial potency of compounds is tested against variety of fungal and bacterial strains by disc agar diffusion technique. in comparison to to fluconazole and chloramphenicol respective...
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