This monograph presents a comprehensive study of petroleum-derived naphthenic acids, including their extraction, purification, physicochemical characterization, spectroscopic identification, and industrial as well as medicinal applications.
The book focuses on crude oils and petroleum fractions from Uzbekistan and Central Asia, with special attention given to the isolation and adsorption purification of naphthenic acids from local refinery streams. Modern analytical methods, such as IR spectroscopy and mass spectrometry, are employed to investigate the structural and compositional features of petroleum acids.
In addition, the monograph explores the use of petroleum acid derivatives in industrial chemistry, pigments, additives, and selected traditional medicinal applications. Particular attention is devoted to environmentally relevant utilization pathways and the valorization of refinery by-products.
The book combines petroleum chemistry, analytical chemistry, process engineering, and applied biomedical perspectives, making it a unique interdisciplinary contribution to the field of petroleum-derived functional compounds.

Samukov Tulkun. DSc. 2020-2024 in Oil and Gas technology, Tashkent Chemical Technology Institute, Faculty of Petrochemistry, Tashkent, Uzbekistan. PhD 1993-1998, Academy of Science of the Republic of Uzbekistan, Institute of Chemistry, specialty of petrochemistry, Tashkent, Uzbekistan. M.Sc. 1988-1993, Tashkent State Technical University of Chemical Engineering, Department of Organic Chemistry, Tashkent, Uzbekistan.

Ismailov Muminjan,2005 PhD (technics) at the Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan. 2023. Doctoral degree (DSc) in Commodity Chemistry and Folk Medicine from the Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan and Andijan State University.2025 Professor of Commodity Chemistry. 2026 Professor of the Department of Chemistry, Ferghana State University; Professor of the Department of Medical and Biological Chemistry, Ferghana Public Health Medical Institute.

Ergashev Akbar. 2021 Bachelor of Tashkent Chemical Technology Institute. 2025 Master's degree at Tashkent Branch of the D.I. Mendeleev Russian Institute of Chemical Technology