Benzoquinone

Part of speech: noun

Definitions

1. A chemical compound characterized by a six-membered aromatic ring with two ketone groups positioned opposite each other; an organic molecule used primarily as an oxidizing agent and intermediate in dye and pharmaceutical production; a colorless to yellow crystalline substance with a distinct, pungent odor
2. An organic compound containing a benzene ring substituted by two non-adjacent carbonyl functional groups; commonly employed in chemical synthesis and industrial applications as a reagent and precursor; typically appearing as yellow crystals with a strong smell
3. A cyclic organic molecule featuring a hexagonal ring structure with two diametrically opposed ketone groups; utilized in various chemical reactions for oxidation and as an intermediate in manufacturing processes; known for its crystalline form and notable scent

Etymology: Benzoquinone is a compound built from two older chemical names, and the first of them carries a long journey. "Benzo-" comes from benzoin, a fragrant resin, whose name reaches English through Middle French "benjoin" and Catalan "benjuí," both ultimately from Arabic "lubān jāwiyy," meaning "frankincense of Java." The Arabic phrase itself rests on "lubān," meaning frankincense, and "jāwa," meaning Java, the island that gave the phrase its geographic label. The second part, "quinone," is a fusion of "quin-" and "-one." "Quin-" traces to quinine, the bitter alkaloid from cinchona bark, whose name comes from a Quechua word for bark. The suffix "-one," used for ketones, was built on the German "Keton," and the chemist's ending "-ic" in "quinic" links back to Latin "-icus." Chemists combined these pieces to name a family of ketone-based rings, and benzoquinone, with its two carbonyl groups set opposite each other, took its name from the two parts of that combination.

Synonyms: quinone, para-benzoquinone, cyclohexadienedione