Butane-1-thiol, also known as butyl mercaptan, is an organosulfur compound with the formula . It is classified as a thiol. It is a volatile, colorless liquid with a fetid (extremely foul-smelling) odor, commonly described as "skunk" odor. In fact, 1-butanethiol is structurally similar to several constituents of a skunk's defensive spray but is not present in the spray. The scent of 1-butanethiol is so strong that the human nose can easily detect it in the air at concentrations as low as 10 parts per billion. The threshold level for 1-butanethiol is reported as 1.4 ppb
Butane-1-thiol, also known as butyl mercaptan, is an organosulfur compound with the formula . It is classified as a thiol. It is a volatile, colorless liquid with a fetid (extremely foul-smelling) odor, commonly described as "skunk" odor. In fact, 1-butanethiol is structurally similar to several constituents of a skunk's defensive spray but is not present in the spray. The scent of 1-butanethiol is so strong that the human nose can easily detect it in the air at concentrations as low as 10 parts per billion. The threshold level for 1-butanethiol is reported as 1.4 ppb
==Uses== Butane-1-thiol is used as an industrial solvent, and as an intermediate for cotton defoliants. It is sometimes placed in "stink bombs" and "stink perfumes" for pranksters.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).