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Aniline (from Portuguese anil 'indigo shrub', and -ine indicating a derived substance) [6] is an organic compound with the formula C 6 H 5 NH 2. Consisting of a phenyl group ( −C 6 H 5 ) attached to an amino group ( −NH 2 ), aniline is the simplest aromatic amine .
Aniline is a benzenoid compound. The NH 2 group attached to the benzene ring means that there is a lone pair of electrons that can enter into conjugation with the benzene ring resulting in delocalization in the aniline. Aniline absorbs in the K (220 - 250 nm) and the B (250 - 290 nm) bands exhibited by benzenoid compounds.
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. The chemical is insoluble in water.
2,4,6-Trichloroaniline + 3 HCl The preparation of 2,4,6-trichloroaniline Safety Occupational exposure to 2,4,6-trichloroaniline may occur through inhalation and dermal contact with this compound at workplaces where 2,4,6-trichloroaniline is produced or used (SRC). The general population may be exposed to 2,4,6-trichloroaniline via drinking water and dermal contact with this compound in ...
β-Alanine (beta-alanine) is a naturally occurring beta amino acid, which is an amino acid in which the amino group is attached to the β-carbon (i.e. the carbon two carbon atoms away from the carboxylate group) instead of the more usual α-carbon for alanine (α-alanine).
They are derived from both aniline and dinitrobenzenes. There are six isomers: 2,3-dinitroaniline, 2,4-dinitroaniline, 2,5-dinitroaniline, 2,6-dinitroaniline, 3,4-dinitroaniline, and 3,5-dinitroaniline. Dinitroanilines are intermediates in the preparation of various industrially important chemicals including dyes and pesticides.
o-Anisidine is a dangerous pollutant from the production of dyes. It is listed as RCRA hazardous waste , with the code K181. [ 6 ] The International Agency for Research on Cancer (IARC) has classified o -anisidine as a Group 2B, possible human carcinogen.
It is due to the electron-withdrawing nature of the nitro groups. This makes the pK a of conjugate acid of 2,4-dinitroaniline being even lower than that of hydronium ions, meaning that it is a strong acid. C 6 H 3 (NH + 3)(NO 2) 2 + H 2 O → C 6 H 3 (NH 2)(NO 2) 2 + H 3 O + The protons in the amino group is also much more acidic than that of ...