THE Liebermann-Burchard reaction 1 is extensively used for the characterization of polynuclear compounds (steroids, polyterpenoids, etc.). Applying this reaction to some of these compounds and simpler ...

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State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, People’s Republic of China ...

Oman and Iran are advancing efforts to establish a coordinated framework for managing commercial ...