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98 Possible Causes for nitrophenols

  • Nitrobenzene Poisoning

    P-aminophenol and p-nitrophenol were excreted in the urine with a coefficient of 0.008 hr -1 . The ratio of excreted p-nitrophenol to p-aminophenol was 2:1.[] At level of nitrophenol and p-aminophenol [3, 21, 24].10-15% of methemoglobin, person is usuallyasymptomatic with mild cyanotic changes.[] Nitrobenzene is metabolized in the body nitrophenol and aminophenol and later on excreted in urine (up to 65%), and in stools (up to 15%) after five days of ingestion.[]

  • Parathion Poisoning

    Methyl parathion and the major metabolite 4-nitrophenol where measured in serum and urine.[] Plasma obidoxime concentrations were followed as well as the cumulative urinary para-nitrophenol conjugate excretion as a measure of total poison load.[]

  • Dinitrophenol

    […] was frequently used to symbolize change and transitions, such as the progression from past to future or from one viewpoint to another. 2,4-dinitrophenol (DNP) and other nitrophenols[] Further studies in laboratory animals with nitrophenolic compounds are required for clarification of their testicular toxicity and for risk assessment in humans.[]

  • Alpha-Galactosidase

    The assay is based on a 15-minute hydrolysis of p-nitrophenyl-a-D-galactopyranoside followed by spectrophotometric measurement of the liberated 4-nitrophenol.[] One Galactosidase Unit is the defined as the quantity of enzyme that will liberate 1 μmol/min of p-nitrophenol under the conditions of the assay.[] Activity: One FCC Galactosidase activity unit (GalU) is defined as the quantity of enzyme that will liberate p-nitrophenol at the rate of 1 μmol/ minute under the conditions[]

  • Pseudomonas

    1524 PubMed Google Scholar Leung KT, Campbell S, Gan Y, White DC, Lee H, Trevors JT (1999) The role of the Sphingomonas species UG30 pentachlorophenol-4-monooxygenase in p -nitrophenol[] The rapid appearance of a yellow color due to hydrolysis of 4-nitrophenyl acetate to nitrophenol indicated the presence of an esterase activity.[] Specific activity (units mg 1 protein) was calculated and defined as the amount of enzyme releasing 1 μmol 4-nitrophenol min 1 (ε, 15.2 10 3 M 1 cm 1 liter).[]

  • Lysosomal Acid Phosphatase Deficiency

    The lysosomal fraction of homogenates of cultivated fibroblasts from both parents (first cousins) had acid phosphatase levels of 3.0 0.9 μmoles of p-nitrophenol phosphate[]

  • Bismuth Subnitrate Poisoning

    4-methyl-2-nitrophenol 1 : 1 0.5 86 6. p- cresol 2,6-dinitro-4-methylphenol 1 : 2 1 82 7. 2-bromophenol 2-bromo-4-nitrophenol 2-bromo-6-nitrophenol 1 : 1 1 52 22 8. 2- bromophenol[] 2,6- dinitrophenol 1 : 2 2 72 14 3. o-cresol 2-methyl-4-nitrophenol 2-methyl-6-nitrophenol 1 : 1 0.5 56 28 4. o-cresol 4,6-dinitro-2-methylphenol 1 : 2 2 83 5. p- cresol[] Nitration of Phenols with Bismuth Subnitrate Entry Substrate Product Sub:NO 3 ratio Time h Yield% 1. phenol 2-nitrophenol 4- nitrophenol 1 : 1 0.5 42 46 2. phenol 2,4-dinitrophenol[]

  • Pseudomonas Aeruginosa

    It can use PNP, succinate, phenol and acetamide as C sources but not m-nitrophenol, o-nitrophenol and other higher nitrophenols.[] To our knowledge this is the first report of a Pseudomonas aeruginosa strain able to degrade p-nitrophenol (PNP).[] Growth kinetics of the 4-nitrophenol degrading strain Pseudomonas putida PNP1. Acta Biotechnol., 18: 29-41.[]

  • Polyarticular Juvenile Idiopathic Arthritis

    Low levels of AP activity was observed in pJIA cultures compared with CT cultures (67.16 /- 53.35 vs 100.11 /- 50.64 mumol p-nitrophenol/h(-1) mg(-1) protein, P 0.008).[]

  • Wolman Disease

    Cells from patient 1 had 5% of control levels of acid lipase, using 14C-triolein as substrate; however, when artificial substrates (esters of 4-methylumbelliferone and p-nitrophenol[]

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