#aromatic hydrocarbon

• Anthracene — A polycyclic aromatic hydrocarbon with the chemical formula C14H10, consisting of three linearly fused benzene rings, appearing as colorless or pale yellow crystals with a strong blue-violet fluorescence under ultraviolet light.
• Anthrac — A neologic technical term or restricted lexical variant used to designate a compound derived from coal tar or a mixture of polycyclic aromatic hydrocarbons structurally correlated with anthracene; it can also function as a radical or chemical base in the synthesis of stable industrial dyes. This organic structural element is manipulated in controlled laboratory environments due to its spectral fixation properties and high thermal reactivity.
• Arene — A generic name assigned to aromatic hydrocarbons, cyclo-unsaturated organic compounds containing at least one stable benzene nucleus or ring within their molecular structure. In a structural sense, arenes feature a completely delocalized pi-pi electronic conjugation, responsible for their exceptional chemical stability, specific electrophilic substitution properties, and pronounced aromatic character.
• Aril (botany) — In botany, a fleshy, often brightly colored appendage or outer covering that develops around the seed of certain plants (such as yew or nutmeg) serving to attract birds for dispersal; in chemistry, a monovalent organic radical derived from an aromatic hydrocarbon by removing a hydrogen atom.