97902-50-6

Usage

Molecular weight

136.20 g/mol

Appearance

Colorless to pale yellow oily liquid

Solubility

Soluble in water, ethanol, and acetone

Boiling point

268°C (514°F)

Melting point

-21°C (-6°F)

Density

1.03 g/cm3

Vapour pressure

0.01 mmHg at 20°C

Chemical structure

A benzene ring with two amine groups (-NH2) attached to opposite sides of the ring, and an ethyl group (-CH2CH3) attached to the 2nd carbon of the benzene ring

Uses

Hair dyes, textile dyes, and rubber chemicals

Hazardous properties

Human skin irritant, sensitizer, and allergen

Health concerns

Allergic skin and respiratory reactions, dermatitis, asthma, and potential carcinogenic effects

Precautions

Handle with care, use proper protective measures, and avoid inhalation and skin contact

Regulatory status

Classified as a hazardous substance and subject to various regulations and restrictions depending on the country or region

Upstream product

• 6853-29-8 4-amino-3-ethyl-1-nitrobenzene 

Relevant academic research and scientific papers

One step hair coloring compositions using salts

A hair coloring composition comprising the following two compositions which are mixed just prior to application to the hair: (a) a composition comprising a water-soluble peroxygen oxidizing agent; and (b) a composition comprising one or more oxidative hair coloring agents selected from the group consisting of an aromatic diamine, an amino phenol, a naphthol, a polyhydric phenol, a catechol and mixtures thereof; wherein the composition comprising one or more oxidative hair coloring agents further comprises al least one water soluble carbonate releasing salts; and optionally a water soluble ammonium salt, is described.

Transition metal complexes as dye forming catalysts in hair coloring compositions

A hair coloring composition comprising a first composition which comprises: (a) a dye forming transition metal salt or complex; which is first applied to the hair; and a second composition which comprises the following two compositions which are mixed just prior to application to the hair: (a) a composition comprising a water-soluble peroxygen oxidizing agent; and (b) a composition comprising one or more oxidative hair coloring agents selected from the group consisting of an aromatic diamine, an aminophenol, a polyhydric phenol a catechol and mixtures thereof.

Enhanced color deposition for hair with sequestering agents

Hair coloring compositions which comprise: (A) non-nitrogenous chelating agents from the group consisting of polyphosphate; phosphonates; hydroxycarboxylates; polyacrylates; zeolite; and mixtures thereof; (B) an oxidative dye primary intermediate; and (C) an oxidative dye coupler; (D) and water are described. The present invention also relates to a method for coloring hair which comprises contacting said hair with a hair coloring composition as described above.

Chemical process

Aromatic amines (e.g., aniline) are selectively alkylated in an ortho nuclear position by reaction with an olefin (e.g., ethylene) in the presence of an aluminum anilide catalyst. Hydrogen halides (e.g., HCl) are added to increase the reaction rate.

Enzyme-activated oxidative process for coloring hair

An enzyme-based oxidative process for coloring hair wherein the hair is exposed to a solution having a pH of about 4 to about 10 and containing hydrogen peroxide, soybean peroxidase enzyme and one or more oxidation dye precursors.