Naphthalene (Standard) is the standard substance of Naphthalene, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Naphthalene is the simplest polycyclic aromatic hydrocarbon (PAH) and a major component of coal tar, serving as an insect repellent in camphor balls and exhibiting antibacterial activity against S. aureus and E. coli.