In the realm of organic chemistry, certain molecules stand out for their fundamental importance and versatility. Quinizarin, identified by its CAS number 81-64-1, is one such compound. This article explores the chemical structure, physical properties, and wide-ranging applications of Quinizarin, highlighting its significance as a key industrial chemical and research intermediate. For those looking to purchase this compound, understanding its characteristics is the first step toward effective utilization.

Quinizarin, systematically named 1,4-dihydroxyanthracene-9,10-dione, is a member of the anthraquinone family. Its structure features a core anthraquinone skeleton with two hydroxyl groups attached at the 1 and 4 positions. This specific arrangement of functional groups imparts unique chemical properties, including its characteristic orange to red crystalline powder appearance and its reactivity in various chemical transformations. The molecular formula C14H8O4 and a molecular weight of approximately 240.21 g/mol provide precise identification for chemists and manufacturers.

The physical properties of Quinizarin are critical for its handling and application. With a melting point typically around 198-199°C, it exists as a stable solid under ambient conditions. Its solubility characteristics are also important; while it may have limited solubility in water, it dissolves in various organic solvents, which is a consideration for its use in synthesis and formulation. As a chemical intermediate, its primary application is in the synthesis of dyes. The hydroxyl groups on the anthraquinone backbone are key to its chromophoric properties and allow for further chemical modifications to achieve specific color outcomes.

Beyond its established role in the dye industry, Quinizarin has been investigated for its potential in other scientific domains. Research has indicated its use in pharmacological studies, particularly concerning its anti-cancer activities and its interactions with DNA. This research interest underscores its value not only as a bulk chemical intermediate but also as a specialized compound for scientific exploration. For companies seeking to purchase Quinizarin, engaging with established chemical manufacturers ensures access to a product with defined specifications and reliable availability, supporting both industrial production and cutting-edge research endeavors.