‌N-Ethylaniline‌ is an important intermediate in organic synthesis and industrial production. It has a wide range of uses, including  Organic synthesis and medicinal chemistry intermediates‌: N-ethylaniline is mainly used in organic synthesis. Its chemical formula is C8H11N. It is a yellow-brown transparent oily liquid, insoluble in water, and miscible in a variety of organic solvents. It is an important intermediate for azo dyes and triphenylmethane dyes, etc., and is crucial for the synthesis of these dyes‌12.

‌Rubber additives‌: N-ethylaniline can be used as a rubber additive. By being added to rubber, the performance and processing properties of the rubber can be improved. It can increase the vulcanization speed of rubber, increase the strength and wear resistance of rubber, and improve the anti-aging properties of rubber. This is very important in the production of rubber products and can increase the service life and reliability of rubber products‌.

Fine chemicals production‌: In addition, N-ethylaniline is also used in the production of fine chemicals such as rubber additives, explosives, and photographic materials. Its chemical properties make it an indispensable raw material in these industrial productions‌2.
‌Acylation reaction‌: In the laboratory, N-ethylaniline can undergo nucleophilic substitution reaction with electrophiles such as chloroacetyl chloride to obtain N-alkylated or acylated derivatives. This reaction is very common in organic synthesis, providing the possibility to synthesize various organic compounds‌2.
To sum up, N-ethylaniline plays an important role in many fields, from organic synthesis to industrial production to the preparation of medicines and fine chemicals, all of which are inseparable from its application.

Chemical Properties
Melting point -63 °C
Boiling point 205 °C(lit.)
density 0.963 g/mL at 25 °C(lit.)
vapor density 4.2 (vs air)
vapor pressure 0.2 mm Hg ( 25 °C)
refractive index n20/D 1.554(lit.)
Fp 185 °F
storage temp. Store below +30°C.

form Liquid
color Clear light yellow to light brown
PH 11 (2.7g/l, H2O, 20℃)
explosive limit 1.8-10.0%(V)
Water Solubility 50 g/L (20 ºC)
Sensitive Air & Light Sensitive
Merck 14,3764
BRN 507468
Exposure limits NIOSH: IDLH 100 ppm
Dielectric constant 5.9（20℃）
Stability: Stable, but decomposes upon prolonged exposure to air or light. Combustible. Incompatible with strong oxidizing agents. May react violently with nitric acid.

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