N-Cyanoethylaniline

N-Cyanoethylaniline, also known as 3-(phenylamino)propanenitrile, has molecular formula C9H10N2, molecular weight 146.19 and CAS number 1075-76-9. It appears as light yellow crystals or a low-melting-point solid with an assay (GC) of ≥98.0%, a melting point of 50-53°C, a boiling point of 160°C under reduced pressure (6 mmHg) and moisture ≤0.3% (see specifications). The cyanoethyl group (-CH2CH2CN) attached to the aniline nitrogen is the reactive functional group for subsequent steps, taking part in hydrolysis, reduction and cyclization to build nitrogen-containing heterocyclic structures; the retained N-H on nitrogen also leaves a site for further substitution (see standard organic chemistry textbooks). The product is supplied in 500 kg FIBC packaging and is used mostly as a coupling component for disperse dyes.

Used in dyes, disperse dyes and fine chemicals as an important intermediate for synthesizing disperse dyes. The cyanoethyl group (-CH₂CH₂CN) is the key reactive functional group, participating in subsequent hydrolysis, reduction and cyclization reactions to construct nitrogen-containing heterocyclic structures. Used primarily as a coupling component for disperse dyes, common in the synthesis of orange, red and yellow disperse dye varieties. Introduction of the cyanoethyl group serves to modulate dye polarity and dyeing uptake (finished-dye performance is subject to testing of the finished dye).

In disperse dye synthesis, this product is used mainly as a coupling component and is common in the diazo coupling steps of orange, red and yellow disperse dye varieties; coupling-component purity affects the synthesis batch at hand, and figures such as assay (GC ≥98.0%) and melting point (50-53°C) are listed under specifications for item-by-item review before charging. Specific routes follow the customer's process.

The cyanoethyl group takes part in subsequent hydrolysis, reduction and cyclization reactions to build nitrogen-containing heterocyclic structures, and the retained N-H leaves a site for further substitution. This direction operates at the synthesis-route level; reaction conditions follow published methods and the customer's process validation.

Introducing the cyanoethyl group serves to modulate dye polarity and dyeing uptake and is a common structural modification in disperse dye molecular design (finished-dye performance is subject to testing of the finished dye); additional specification requirements can be discussed item by item during inquiry.