Naturally Occurring:
* Thyroid Hormones: Thyroxine (T4) and Triiodothyronine (T3) are essential hormones produced by the thyroid gland. They play crucial roles in regulating metabolism, growth, and development.
* Seaweed: Certain types of seaweed, like kelp and nori, are rich sources of iodine.
* Fish and Seafood: Fish, especially saltwater fish like cod, tuna, and shellfish, contain iodine.
* Dairy Products: Milk, cheese, and yogurt contain small amounts of iodine.
* Eggs: Eggs are a good source of iodine.
* Salt: Iodized salt is a common dietary source of iodine, added to prevent iodine deficiency.
Synthetic:
* Potassium Iodide (KI): A common source of iodine used in supplements and medications.
* Sodium Iodide (NaI): Used in X-ray contrast agents, disinfectants, and for the production of iodine.
* Iodine Tincture: A solution of iodine in alcohol, used as an antiseptic.
* Povidone-iodine: A complex of iodine and povidone, often used as a topical antiseptic.
* Iodinated contrast agents: Used in medical imaging to improve the visibility of certain tissues and organs.
* Iodine-containing pharmaceuticals: Various medications, such as antifungal agents, antiseptics, and thyroid hormone replacements, contain iodine.
Other Examples:
* Iodine monochloride (ICl): A strong oxidizing agent used in organic chemistry.
* Iodine trichloride (ICl3): A yellow solid used as a reagent in organic synthesis.
* Iodine pentafluoride (IF5): A colorless liquid used as a fluorinating agent.
Note: The specific compounds containing iodine can vary widely depending on the context. For example, a list of iodine-containing compounds in a particular product might include specific additives or ingredients.
