Naphthalene is a hydrocarbon produced by the distillation of coal tar and is an aromatic white crystalline substance. Naphthalene is the most abundant component in coal tar. It is used as an insect repellant and insect fumigant. The compound is used in the manufacture of celluloid, dyes, hydrogenated naphthalenes, oil fumes, smokeless powders and synthetic resins.
In addition to the nitrogen-based heterocycles presented so far, a number of others nitrogen-based scaffolds have also been reported as promising agents for GBM treatment, including pyrazolo-triazole, imidazotetrazine, piperidine, purine, imidazopyrazine, pyrazole, triazole among others.