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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).
This category has the following 3 subcategories, out of 3 total. ... Dinitrophenol compounds (2 C) N. Nitrophenol derivatives (1 C, 12 P) Nitrophenols (1 C, 4 P) This ...
Dinitrophenols (3 P) Pages in category "Nitrophenols" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. ...
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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 ]
2,3-Dinitrophenol (2,3-DNP) is an organic compound with the formula HOC 6 H 3 (NO 2) 2. [2] 2,3-Dinitrophenol is not planar due to rotation of nitro groups, and is ...
The nitrone-olefin (3+2) cycloaddition reaction is the combination of a nitrone with an alkene or alkyne to generate an isoxazoline or isoxazolidine via a (3+2) cycloaddition process. [1] This reaction is a 1,3-dipolar cycloaddition , in which the nitrone acts as the 1,3-dipole , and the alkene or alkyne as the dipolarophile.
1,2,3-Triazole is one of a pair of isomeric chemical compounds with molecular formula C 2 H 3 N 3, called triazoles, which have a five-membered ring of two carbon atoms and three nitrogen atoms. 1,2,3-Triazole is a basic aromatic heterocycle.