Acetylene is not used as an anesthetic under any of the given names. It is used as a fuel and a chemical intermediate. It is a colorless, flammable gas with a garlic-like odor. It is produced by the reaction of calcium carbide with water. Acetylene is used in welding and cutting, as a fuel for internal combustion engines, and in the production of chemicals such as acetaldehyde and vinyl chloride.
A. Narcylene is a trade name for the anesthetic enflurane.
B. Pyrene is a polycyclic aromatic hydrocarbon that is found in coal tar and cigarette smoke. It is a carcinogen.
C. Neopyrene is a polycyclic aromatic hydrocarbon that is found in coal tar and cigarette smoke. It is a carcinogen.
D. Pyroline is a chemical compound that is used in the production of dyes and pharmaceuticals. It is a carcinogen.