1. Water (H₂O) - Essential for life; universal solvent.
2. Carbon Dioxide (CO₂) - Product of respiration; used in photosynthesis.
3. Sodium Chloride (NaCl) - Table salt; used for seasoning and preservation.
4. Ammonia (NH₃) - Used in fertilizers and cleaning agents.
5. Sulfuric Acid (H₂SO₄) - Strong acid for batteries and industrial processes.
6. Hydrochloric Acid (HCl) - Strong acid in gastric juice; used in cleaning.
7. Acetic Acid (CH₃COOH) - Main component of vinegar; food preservative.
8. Glucose (C₆H₁₂O₆) - Primary energy source for organisms.
9. Calcium Carbonate (CaCO₃) - Found in limestone; used in construction.
10. Methane (CH₄) - Main component of natural gas; potent greenhouse gas.
11. Ethanol (C₂H₅OH) - Used as fuel and in beverages.
12. Benzene (C₆H₆) - Aromatic hydrocarbon used in chemical synthesis.
13. Hydrogen Peroxide (H₂O₂) - Disinfectant and bleaching agent.
14. Nitric Acid (HNO₃) - Used in fertilizers and explosives.
15. Silicon Dioxide (SiO₂) - Found in sand; used in glass and electronics.
16. Potassium Nitrate (KNO₃) - Fertilizer and food preservative.
17. Sodium Bicarbonate (NaHCO₃) - Baking soda; used as an antacid.
18. Calcium Sulfate (CaSO₄) - Used in plaster and as a desiccant.
19. Sodium Hydroxide (NaOH) - Caustic soda; strong base in chemical processes.
20. Iron(III) Oxide (Fe₂O₃) - Rust; used in pigments and metallurgy.
21. Copper(II) Sulfate (CuSO₄) - Used in agriculture and as a fungicide.
22. Calcium Hydroxide (Ca(OH)₂) - Slaked lime; used in construction.
23. Phosphoric Acid (H₃PO₄) - Used in soft drinks and fertilizers.
24. Sodium Sulfate (Na₂SO₄) - Used in detergents and glassmaking.
25. Zinc Oxide (ZnO) - Used in ointments and sunscreens.
26. Lead(II) Acetate (Pb(C₂H₃O₂)₂) - Used in cosmetics and sweetening.
27. Nickel(II) Sulfate (NiSO₄) - Used in electroplating.
28. Sodium Thiosulfate (Na₂S₂O₃) - Used in photography and as a dechlorinating agent.
29. Magnesium Sulfate (MgSO₄) - Epsom salt; used in agriculture and medicine.
30. Potassium Chloride (KCl) - Used in fertilizers and as a salt substitute.
31. Sodium Phosphate (Na₃PO₄) - Used in food and detergents.
32. Cobalt(II) Chloride (CoCl₂) - Used in humidity indicators.
33. Barium Sulfate (BaSO₄) - Used in medical imaging.
34. Calcium Nitrate (Ca(NO₃)₂) - Used in fertilizers and explosives.
35. Lithium Carbonate (Li₂CO₃) - Used in psychiatric medication.
36. Strontium Carbonate (SrCO₃) - Used in fireworks and magnets.
37. Aluminum Oxide (Al₂O₃) - Used in abrasives and ceramics.
38. Titanium Dioxide (TiO₂) - Used in paints and sunscreens.
39. Silicon Carbide (SiC) - Used in abrasives and semiconductors.
40. Glycine (C₂H₅NO₂) - Simplest amino acid; used in food and pharmaceuticals.
41. Aspartame (C14H18N2O5) - Artificial sweetener.
42. Sucrose (C₁₂H₂₂O₁₁) - Common sugar; used in food.
43. Lactic Acid (C₃H₆O₃) - Produced in muscle metabolism; used in food.
44. Citric Acid (C₆H₈O₇) - Used as a preservative and flavoring agent.
45. Acetone (C₃H₆O) - Solvent in nail polish remover and industrial applications.
46. Boric Acid (H₃BO₃) - Used as an antiseptic and insecticide.
47. Calcium Phosphate (Ca₃(PO₄)₂) - Used in fertilizers and supplements.
48. Tannic Acid (C14H10O9) - Used in tanning leather and as an antioxidant.
49. Dextrose (C₆H₁₂O₆) - Simple sugar; used in IV fluids and food.
50. Ferrous Sulfate (FeSO₄) - Used in iron supplements and fertilizers.
51. Mercury(II) Chloride (HgCl₂) - Used in disinfectants and as a pesticide.
52. Sodium Citrate (Na₃C₆H₅O₇) - Used as a food preservative and anticoagulant.
53. Trisodium Phosphate (Na₃PO₄) - Used in cleaning and food processing.
54. Sodium Acetate (C₂H₃NaO₂) - Used in heating pads and as a food preservative.
55. Calcium Iodide (CaI₂) - Used in iodide supplements.
56. Manganese Dioxide (MnO₂) - Used in batteries and as a catalyst.
57. Calcium Fluoride (CaF₂) - Used in toothpaste and as a flux in metallurgy.
58. Bromine (Br₂) - Used in flame retardants and photography.
59. Sodium Lauryl Sulfate (C₁₂H₂₅NaO₄S) - Used in detergents and personal care products.
60. Vanillin (C₈H₈O₃) - Main component of vanilla; used in flavoring.
61. Sodium Nitrite (NaNO₂) - Used as a food preservative and color fixative.
62. Sodium Sulfite (Na₂SO₃) - Used in photography and food preservation.
63. Calcium Acetate (C₄H₆CaO₄) - Used as a food additive and in dialysis.
64. Polyvinyl Chloride (PVC) - Used in plumbing and construction.
65. Polystyrene (C₈H₈) - Used in packaging and insulation.
66. Polyethylene (C₂H₄) - Used in bags and containers.
67. Acrylic Acid (C₃H₄O₂) - Used in plastics and adhesives.
68. Sodium Hypochlorite (NaClO) - Used in bleach and disinfectants.
69. Potassium Permanganate (KMnO₄) - Used as a disinfectant and in water treatment.
70. Sodium Bicarbonate (NaHCO₃) - Baking soda; used as an antacid and leavening agent.
71. Chloroform (CHCl₃) - Used as a solvent and anesthetic.
72. Ethylene Glycol (C₂H₆O₂) - Used in antifreeze and as a solvent.
73. Acetic Anhydride (C₄H₆O₃) - Used in the production of cellulose acetate.
74. Sodium Fluoride (NaF) - Used in toothpaste and water fluoridation.
75. Calcium Chloride (CaCl₂) - Used for de-icing and in drying agents.
76. Lead(II) Nitrate (Pb(NO₃)₂) - Used in explosives and glass production.
77. Sodium Phosphate (Na₃PO₄) - Used in cleaning and food preparation.
78. Sodium Perborate (NaBO₃·4H₂O) - Used in laundry detergents.
79. Ethyl Acetate (C₄H₈O₂) - Used as a solvent in paints and coatings.
80. Calcium Silicate (CaSiO₃) - Used in construction and insulation.
81. Sodium Dodecyl Sulfate (SDS) - Used in protein analysis and detergents.
82. Sodium Stearate (C₁₈H₃₅NaO₂) - Used in soaps and cosmetics.
83. Benzyl Alcohol (C₇H₈O) - Used as a solvent and in cosmetics.
84. Dodecane (C₁₂H₂₆) - Used in solvents and as a fuel.
85. Hexane (C₆H₁₄) - Used as a solvent in extraction processes.
86. Toluene (C₇H₈) - Used as an industrial solvent and in paint thinners.
87. Xylene (C₈H₁₀) - Used in the production of plastics and as a solvent.
88. Silicone (Various) - Used in sealants, lubricants, and medical devices.
89. Sodium Metabisulfite (Na₂S₂O₅) - Used as a preservative and antioxidant.
90. Calcium Carbonate (CaCO₃) - Used in antacids and as a calcium supplement.
91. Zinc Chloride (ZnCl₂) - Used in wood preservation and as a chemical reagent.
92. Copper(I) Oxide (Cu₂O) - Used in ceramics and as a pigment.
93. Copper(II) Chloride (CuCl₂) - Used in chemical synthesis and as a fungicide.
94. Sodium Citrate (Na₃C₆H₅O₇) - Used as an anticoagulant and in food.
95. Glycerol (C₃H₈O₃) - Used in pharmaceuticals and cosmetics.
96. Caffeine (C₈H₁₀N₄O₂) - Stimulant found in coffee and tea.
97. Penicillin (C₁₆H₁₉N₂O₃S) - Antibiotic used to treat bacterial infections.
98. Tetracycline (C₂₂H₂₄N₂O₈) - Broad-spectrum antibiotic.
99. Aspirin (C₉H₈O₄) - Pain reliever and anti-inflammatory drug.
100. Cholesterol (C₂₇H₄₆O) - Lipid essential for cell membranes.
101. DNA (C₁₁H₁₄N₃O₃P) - Genetic material in living organisms.
102. RNA (C₁₁H₁₄N₄O₁₈P) - Plays a role in protein synthesis.
This comprehensive list includes a wide range of compounds used in various fields, from biology and medicine to industry and agriculture.