Mosurkal, Ravi et al. published their research in Journal of Physical Chemistry in 1994 | CAS: 55490-87-4

2-(Anthracen-9-ylmethylene)malononitrile (cas: 55490-87-4) belongs to nitriles. Nitriles are polar, as indicated by high dipole moments. As liquids, they have high relative permittivities, often in the 30s. Some nitriles are manufactured by heating carboxylic acids with ammonia in the presence of catalysts. This process is used to make nitriles from natural fats and oils, the products being used as softening agents in synthetic rubbers, plastics, and textiles and for making amines.Synthetic Route of C18H10N2

Excited State Dipole Moments from an Efficient Analysis of Solvatochromic Stokes Shift Data was written by Mosurkal, Ravi;Samanta, A.;Radhakrishnan, T. P.. And the article was included in Journal of Physical Chemistry in 1994.Synthetic Route of C18H10N2 This article mentions the following:

It is shown that the solvatochromism of Stokes shifts has superior correlation with the solvent polarity function ETN, and the theor. basis for this is analyzed. The estimation of reliable excited state dipole moments from this correlation as well as the practical advantage of the method in terms of the possibility of employing mixed solvents is demonstrated. In the experiment, the researchers used many compounds, for example, 2-(Anthracen-9-ylmethylene)malononitrile (cas: 55490-87-4Synthetic Route of C18H10N2).

2-(Anthracen-9-ylmethylene)malononitrile (cas: 55490-87-4) belongs to nitriles. Nitriles are polar, as indicated by high dipole moments. As liquids, they have high relative permittivities, often in the 30s. Some nitriles are manufactured by heating carboxylic acids with ammonia in the presence of catalysts. This process is used to make nitriles from natural fats and oils, the products being used as softening agents in synthetic rubbers, plastics, and textiles and for making amines.Synthetic Route of C18H10N2

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts