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There are specific chemical experimental tests using so widely over the world for characterizing different molecules. In this study, two classes of these tests has used for identifying two moieties: amine (as secondary amine) and pentose sugar (as deoxy ribose). Thirty DNA samples were hydrolyzed by concentrated hydrochloric acid to make pH of the medium = 0.3-0.8, then they were tested by above known laboratory tests; Hinsberg, Diazonium, Molisch, Benedict, Barfoed, Bial, Unsaturated test bydoi:10.33545/26174693.2020.v4.i2a.54 fatcat:qrunrwocp5cb5l23kvua3snaoe