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4-Nitrophenol is a product of the enzymatic cleavage of several synthetic substrates such as 4-nitrophenyl phosphate (used as a substrate for alkaline phosphatase), 4-nitrophenyl acetate (for carbonic anhydrase), 4-nitrophenyl-β-D-glucopyranoside and other sugar derivatives which are used to assay various glycosidase enzymes.
p-Nitrophenol, yellow solid is a precursor to the rice herbicide fluorodifen, the pesticide parathion, and the human analgesic paracetamol (also known as acetaminophen). The mononitrated phenols are often hydrogenated to the corresponding aminophenols that are also useful industrially.
Phenol (also known as carbolic acid, phenolic acid, or benzenol) is an aromatic organic compound with the molecular formula C 6 H 5 OH. [5] It is a white crystalline solid that is volatile . The molecule consists of a phenyl group ( −C 6 H 5 ) bonded to a hydroxy group ( −OH ).
p-cresol: Preferred IUPAC name: 2-methylphenol 3-methylphenol 4-methylphenol Systematic name: 2-methylbenzenol 3-methylbenzenol 4-methylbenzenol Other names ortho-cresol 2-hydroxytoluene meta-cresol 3-hydroxytoluene para-cresol 4-hydroxytoluene Molecular formula: C 7 H 8 O SMILES: oc1c(C)cccc1 oc1cc(C)ccc1 oc1ccc(C)cc1 Molar mass: 108.14 g/mol ...
[23] [24] The aromatic amino acid phenylalanine, synthesized in the shikimic acid pathway, is the common precursor of phenol containing amino acids and phenolic compounds. In plants, the phenolic units are esterified or methylated and are submitted to conjugation , which means that the natural phenols are mostly found in the glycoside form ...
Iron metal in refluxing acetic acid [25] Samarium diiodide [26] Raney nickel, platinum on carbon, or zinc dust and formic acid or ammonium formate [6] α,β-Unsaturated nitro compounds can be reduced to saturated amines by: Catalytic hydrogenation over palladium-on-carbon; Iron metal
p-Cresol is a major component in pig odor. [11] Temporal glands secretion examination showed the presence of phenol and p-cresol during musth in male elephants. [12] [13] It is one of the very few compounds to attract the orchid bee Euglossa cyanura and has been used to capture and study the species.
English: Illustration of resonance stabilisation of the p-nitrophenoxide anion, which leads to a lower pKa of p-nitrophenol compared to phenol. pKa values taken from File:Phenol_versus_nitro-phenol.jpg by User:RLM0518.