Used primarily in the production of nylon-6 and nylon-6,6, serving as a key intermediate in the synthesis of caprolactam and adipic acid. Widely employed as an industrial solvent for resins, lacquers, and pesticides due to its ability to dissolve both polar and nonpolar substances. Also utilized in the formulation of paint and varnish removers for its effectiveness in breaking down tough coatings. Plays a role in the synthesis of pharmaceuticals, perfumes, and rubber chemicals. Common in organic synthesis as a building block for cyclic compounds.