Which common chemical is categorized solely as a List 1 chemical?

Ergotamine is categorized as a List 1 chemical because it has a high potential for abuse and is subject to strict regulations. List 1 chemicals are often those that can be used in the illicit manufacture of controlled substances. Ergotamine, derived from the ergot fungus, is primarily used medically for its ability to treat migraines, but it also has a history of use in the illegal synthesis of more potent drugs.

Acetone, ethyl ether, and potassium permangate are not classified solely as List 1 chemicals. Acetone is widely used as a solvent in various industrial and consumer products and is generally regarded as safe in many contexts, while ethyl ether is a solvent with historical use as an anesthetic but does not have the same level of control as List 1 chemicals. Potassium permangate is primarily a chemical oxidizing agent used in water treatment and other applications. Thus, they do not meet the criteria for classification as solely List 1 chemicals.