CA Section Titles : You will find that Chemical Abstracts (CA) is divided into 80 different sections. Each CA section covers only one broad area of scientific inquiry. Each abstract in CA appears in only one section. Abstracts are assigned to a section according to the novelty of the process or substance that is being reported in the literature. If abstract information pertains to a section(s) in addition to the one assigned, a cross-reference is established. The following list of the 80 individual sections is collected into five broad headings : BIOCHEMISTRY (BIO/SC) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Pharmacology Mammalian Hormones Biochemical Genetics Toxicology Agrochemical Bioregulators General Biochemistry Enzymes Radiation Biochemistry Biochemical Methods Microbial, Algal, and Fungal Biochemistry Plant Biochemistry Nonmammalian Biochemistry Mammalian Biochemistry Mammalian Pathological Biochemistry Immunochemistry Fermentation and Bioindustrial Biochemistry Food and Feed Chemistry Animal Nutrition Fertilizers, Soils, and Plant Nutrition History, Education, and Documentation ORGANIC (ORG/SC) 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. General Organic Chemistry Physical Organic Chemistry Aliphatic Compounds Alicyclic Compounds Benzene, Its Derivatives, and Condensed Benzenoid Compounds Biomolecules and Their Synthetic Analogs Heterocyclic Compounds (One Hetero Atom) Heterocyclic Compounds (More Than One Hetero Atom) Organometallic and Organometalloidal Compounds Terpenes and Terpenoids Alkaloids Steroids Carbohydrates Amino Acids, Peptides, and Proteins MACROMOLECULAR (MAC/SC) 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. Chemistry of Synthetic High Polymers Physical Properties of Synthetic High Polymers Plastics Manufacture and Processing Plastics Fabrication and Uses Synthetic Elastomers and Natural Rubber Textiles and Fibers Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers Coatings, Inks, and Related Products Cellulose, Lignin, Paper, and Other Wood Products Industrial Carbohydrates Industrial Organic Chemicals, Leather, Fats, and Waxes Surface-Active Agents and Detergents APPLIED (APP/SC) 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. Apparatus and Plant Equipment Unit Operations and Processes Industrial Inorganic Chemicals Propellants and Explosives Fossil Fuels, Derivatives, and Related Products Electrochemical, Radiational, and Thermal Energy Technology Mineralogical and Geological Chemistry Extractive Metallurgy Ferrous Metals and Alloys Nonferrous Metals and Alloys Ceramics Cement, concrete, and Related Building Materials Air Pollution and Industrial Hygiene Waste Treatment and Disposal Water Essential Oils and Cosmetics Pharmaceuticals Pharmaceutical Analysis PHYSICAL, INORGANIC, AND ANALYTICAL (PIA/SC) 65. 66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 76. 77. 78. 79. 80. General Physical Chemistry Surface Chemistry and Colloids Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms Phase Equilibriums, Chemical Equilibriums, and Solutions Thermodynamics, Thermochemistry, and Thermal Properties Nuclear Phenomena Nuclear Technology Electrochemistry Optical, Electron, and Mass Spectroscopy and Other Related Properties Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes Crystallography and Liquid Crystals Electric Phenomena Magnetic Phenomena Inorganic Chemicals and Reactions Inorganic Analytical Chemistry Organic Analytical Chemistry