In spite of the variety of initial reactions, the aerobic biodegradation of aromatic compounds generally yields dihydroxy intermediates for ring cleavage. Recent investigation of the degradation of nitroaromatic compounds revealed that some nitroaromatic compounds are initially converted to 2-aminophenol rather than dihydroxy intermediates by a number of microorganisms. The complete pathway for...

Oxidation of formaldehyde (HCHO) is very important, owing to its use in fuel cells. Modification of electrodes surfaces is an excellent way to decrease the overpotentials as well as to increase the current density of the voltammetric response.pt as most efficient metal catalyst can easily be poisoned by product of oxidation and also it has high cost. In this work an efficient and low cost elect...

A novel magnetite nanoparticle-based heterogeneous acidic catalyst [Fe3O4@SiO2@Am-PPC-SO3H] [HSO4] was successfully prepared and characterized by SEM, EDX, TGA, VSM and FT-IR techniques. The magnetically retrievable and sustainable catalyst was investigated in the reaction of aldehyde and o-aminophenol for the synthesis of benzoxazoles. The...

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...

1. On the basis of its action on a number of conjugated hexuronic acids and other compounds, it is concluded that mouse-liver glucuronidase is specific for f-D-glucopyranuronides, including ,B-D-glucopyranuronic acid-1-phosphate. 2. Derivatives of klevomenthol caused slight activation of glucuronidase. 3. Mouse-liver preparations did not catalyse the condensation of o-aminophenol with aor ,Bglu...

measured by CO-reduced difference spectroscopy (Omura & Sato, 1964) was retained on this column. The concentrated CM-cellulose eluate was dialyzed to pH7.4, and then applied to a DEAE-Sephadex or QAE [diethyl-(2-hydroxypropyl)aminoethyl]-Sephadex column. Peak I eluted from the DEAE-Sephadex exhibited UTP-glucuronyltransferase activity. UDP-glucuronyltransferase activity towards various substrat...

In view of the fact that aniline is absorbed not only by inhalation but also through the skin, the aerial contamination alone is not an exact indication of exposure. It is necessary to find a biological test which reveals exposure and is independent of the route of absorption. It is conceivable that the p-aminophenol excretion in the urine, which is a well-known symptom of aniline intoxication,...