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N-Methylaniline (NMA) is an aniline derivative. It is an organic compound with the chemical formula C 6 H 5 NH(CH 3 ). The substance is a colorless viscous liquid , Samples turn brown when exposed to air.
o-Toluidine is absorbed through inhalation and dermal contact as well as from the gastrointestinal tract. [19] [13] [20] [21]The metabolism of o-toluidine involves many competing activating and deactivating pathways, including N-acetylation, N-oxidation, and N-hydroxylation, and ring oxidation.
o-methylaniline m-methylaniline p-methylaniline Chemical name: 2-methylaniline 3-methylaniline 4-methylaniline Chemical formula: C 7 H 9 N Molecular mass: 107.17 g/mol Glass transition temperature: 189 K [3] 187 K [4] Glass not formed [3] Melting point: −23 °C −30 °C 43 °C Boiling point: 199–200 °C 203–204 °C 200 °C Density: 1.00 ...
The term nitroaniline in chemistry refers to a derivative of aniline (C 6 H 5 NH 2) containing a nitro group (—NO 2) There are three simple nitroanilines of formula C 6 H 4 (NH 2)(NO 2) which differ only in the position of the nitro group: 2-Nitroaniline; 3-Nitroaniline; 4-Nitroaniline; Some more complicated molecules with other substituents ...
2-Nitroaniline is an organic compound with the formula H 2 NC 6 H 4 NO 2. It is a derivative of aniline , carrying a nitro functional group in position 2. [ 1 ] It is mainly used as a precursor to o-phenylenediamine.
2-Nitrotoluene or ortho-nitrotoluene is an organic compound with the formula CH 3 C 6 H 4 NO 2. It is pale yellow liquid that crystallizes in two forms, called α (−9.27 °C) and β (−3.17 °C). It is pale yellow liquid that crystallizes in two forms, called α (−9.27 °C) and β (−3.17 °C).
N-Methylation of aniline with methanol at elevated temperatures over acid catalysts gives N-methylaniline and N,N-dimethylaniline: C 6 H 5 NH 2 + 2 CH 3 OH → C 6 H 5 N(CH 3) 2 + 2H 2 O. N-Methylaniline and N,N-dimethylaniline are colorless liquids with boiling points of 193–195 °C and 192 °C, respectively. These derivatives are of ...
DMA was first reported in 1850 by the German chemist A. W. Hofmann, who prepared it by heating aniline and iodomethane: [3] [4]. C 6 H 5 NH 2 + 2 CH 3 I → C 6 H 5 N(CH 3) 2 + 2 HI. DMA is produced industrially by alkylation of aniline with methanol in the presence of an acid catalyst: [5]