The present book has illustrated the important practical exercises included in the syllabus of Pharmaceutical Chemistry/Chemistry of Natural Products at the undergraduate/postgraduate level. The book is divided into 16 chapters. Each chapter is designed in a simple and concise language with appropriate chemical structures and equations. The chemical tests and assay procedures are presented according to recent Pharmacopoeia. 1 carbohydrates. 2 lipids. 3 proteins. 4 alkaloids. 5 vitamins. 6 steroids. 7 enzyme. 8 plant acid. 9 tannins . 10 resins. 11 gums. 12 balsams. 13 volatile oils. 14 glycosides. 15 antibioties. 16 natural colorants.