N,N-Dimethyl-1-naphthylamine
Encyclopedia
N,N-Dimethyl-1-naphthylamine is an aromatic amine
Aromatic amine
An aromatic amine is an amine with an aromatic substituent - that is -NH2, -NH- or nitrogen group attached to an aromatic hydrocarbon, whose structure usually contains one or more benzene rings. Aniline is the simplest example....

. It is formally derived from 1-naphthylamine
1-Naphthylamine
1-Naphthylamine is an aromatic amine. It can be prepared by reducing 1-nitronaphthalene with iron and hydrochloric acid at about 70 °C, the reaction mixture being neutralized with milk of lime, and the naphthylamine steam-distilled...

 by replacing the hydrogen atoms on the amino group with methyl group
Methyl group
Methyl group is a functional group derived from methane, containing one carbon atom bonded to three hydrogen atoms —CH3. The group is often abbreviated Me. Such hydrocarbon groups occur in many organic compounds. The methyl group can be found in three forms: anion, cation and radical. The anion...

s. N,N-Dimethyl-1-naphthylamine is used in the nitrate reductase test
Nitrate reductase test
The nitrate reductase test is a test to differentiate between bacteria based on their ability or inability to reduce nitrate to nitrite using anaerobic respiration.-Procedure:Various assays for detecting nitrate reduction have been described...

 to form a red precipitate of Prontosil
Prontosil
Prontosil, the first commercially available antibacterial antibiotic , was developed by a research team at the Bayer Laboratories of the IG Farben conglomerate in Germany...

 by reacting with a nitrite
Nitrite
The nitrite ion has the chemical formula NO2−. The anion is symmetric with equal N-O bond lengths and a O-N-O bond angle of ca. 120°. On protonation the unstable weak acid nitrous acid is produced. Nitrite can be oxidised or reduced, with product somewhat dependent on the oxidizing/reducing agent...

-sulfanilic acid
Sulfanilic acid
Sulfanilic acid is a grey crystalline solid produced from sulfonation of aniline.It readily forms diazo compounds and is used to make dyes and sulpha drugs....

complex.
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