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This image of a simple structural formula is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
A solution of 4-nitrophenol appears colorless below pH 5.4 and yellow above pH 7.5. [3] This color-changing property makes this compound useful as a pH indicator . The yellow color of the 4-nitrophenolate form (or 4-nitro phenoxide ) is due to a maximum of absorbance at 405 nm (ε = 18.3 to 18.4 mM −1 cm −1 in strong alkali). [ 4 ]
with the formula HOC 6 H 4 NO 2.Three isomeric nitrophenols exist: . o-Nitrophenol (2-nitrophenol; OH and NO 2 groups are neighboring, a yellow solid.; m-Nitrophenol (3-nitrophenol, CAS number: 554-84-7), a yellow solid (m.p. 97 °C) and precursor to the drug mesalazine (5-aminosalicylic acid).
The structure of an organic nitro compound. In organic chemistry, nitro compounds are organic compounds that contain one or more nitro functional groups (−NO 2). The nitro group is one of the most common explosophores (functional group that makes a compound explosive) used globally. The nitro group is also strongly electron-withdrawing.
Phenol reacts with dilute nitric acid at room temperature to give a mixture of 2-nitrophenol and 4-nitrophenol while with concentrated nitric acid, additional nitro groups are introduced, e.g. to give 2,4,6-trinitrophenol. Friedel Crafts alkylations of phenol and its derivatives often proceed without catalysts. Alkylating agents include alkyl ...
4-Nitrothiophenol is an organosulfur compound with the formula HSC 6 H 4 NO 2. It exists as a yellow solid that is soluble in several organic solvents. It is one of three isomers of nitrothiophenol. It was originally prepared by sulfidation of 4-nitrochlorobenzene, [1] which was improved by intentionally generating a polysulfide intermediate.
Download as PDF; Printable version; ... Chemical formula. C 8 H 7 NO 4 Molar mass: 181.15 g/mol ... 4-nitrophenol, 2-nitrodiphenylamine:
Download QR code; Print/export ... The following 4 pages are in this category, out of 4 total. ... Nitrophenol; N. 4-Nitrophenol; P. Picric acid; S. Styphnic acid