Textbook in PDF format The book comprises 14 chapters; covers the fundamental classification, nomenclature, occurrence, isolation, extraction, occurrence, detection, biosynthesis, medicinal/industrial significance, conversion and inter-conversions, etc. Salient features: Easy-to-understand language. Concise presentation of natural products chemistry—plants, animals, and marine organisms, including primary and secondary metabolites, supported by spectral data. The text is supplemented with detailed illustrations, chemical configurations, and tables to clarify the basic underlying principle. Emphasis on fundamental classification, nomenclature, isolation, extraction, occurrence, detection, biosynthesis, medicinal/industrial significance, conversion and inter-conversions, etc. Short and long questions for self-assessment. MCQs with answers. Natural Products—An Introduction Carbohydrates—An Overview Alkaloids—An Overview Chemistry of Terpenoids Lipids—Structure, Analysis and Functions Amino Acids, Proteins and Peptides Chemistry of Flavonoids—An Overview Purines—Chemistry and Medicinal Aspects Introduction to Nucleic Acids—Structural Properties of Nucleic Acid Building Blocks Steroids—Chemistry and Medicinal Importance Vitamins—Chemistry and Biological Significance Polynuclear Aromatic Hydrocarbons Heterocyclic Compounds—Nomenclature, Synthesis, Properties and Medicinal Importance Antibiotics—Chemistry and Medicinal Importance