#aquin
- Anthraquinone — An aromatic diketone structurally derived from anthracene, having the chemical formula C14H8O2, occurring as yellow crystals insoluble in water; a substance obtained through the oxidation of anthracene or via synthesis from phthalic anhydride and benzene. This organic compound functions as a fundamental intermediate in the chemical industry for manufacturing stable anthraquinone dyes, high-quality pigments, and in the industrial production of hydrogen peroxide.
- Anthraquinonic — Belonging to anthraquinone, referring to anthraquinone, or structurally deriving from the core of this aromatic diketone; a chemical compound or plant pigment (such as certain natural derivatives found in medicinal plants or fungi) characterized by the presence of ketone groups fixed onto the three-ring fused system. In an industrial sense, it describes a major class of synthetic dyes renowned for their remarkable lightfastness and high-performance color fixation on textile fibers.
- Aquin — A port city and municipality located in the Sud department of Haiti, on the southern coast of the Tiburon peninsula; it represents an important regional center for agricultural trade, structurally recognized for its protected bay, natural beaches, historical colonial ruins, and traditional production of tobacco, sugarcane, and cotton.
- Aquino — A city and municipality in central Italy, located in the Frosinone province (Lazio region), known in antiquity as Aquinum; it represents a major historical site and the place of origin of the famous noble family from which the philosopher Thomas Aquinas emerged, structurally recognized for its Roman and medieval ruins.
- Aranjuez — A historical city and municipality in Spain, located in the Community of Madrid, famous for its Royal Palace and spectacular gardens declared a UNESCO World Heritage site. In universal cultural consciousness, the name is indissolubly linked to the famous classical guitar composition 'Concierto de Aranjuez', composed by Joaquín Rodrigo, inspired by the melancholic atmosphere and beautiful landscapes of this former royal spring residence.