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Butane-1-thiol, also known as butyl mercaptan, is a volatile, clear to yellowish liquid with a fetid (extremely foul-smelling) odor, commonly described as "skunk" odor. In fact, 1-butanethiol is structurally similar to several major constituents of a skunk's defensive spray but is not actually present in the spray. [ 4 ]
Butyl mercaptan may refer to: Butanethiol (n-butyl mercaptan) tert-Butylthiol (t-butyl mercaptan) This page was last edited on 4 May 2018, at ...
tert-Butylthiol is the main ingredient in many gas odorant blends. [citation needed] It is always utilized as a blend of other compounds, typically dimethyl sulfide, methyl ethyl sulfide, tetrahydrothiophene or other mercaptans such as isopropyl mercaptan, sec-butyl mercaptan and/or n-butyl mercaptan, due to its rather high melting point of −0.5 °C (31.1 °F).
Isopropyl mercaptan is a thiol with the formula C 3 H 8 S. It is a water-white [ clarification needed ] liquid with an extremely pungent odor resembling skunk spray or rotten eggs . The pungent smell allows it to be used as an odorizer . [ 2 ]
A human olfactory receptor, OR2T11, has been identified which, in the presence of copper, is highly responsive to the gas odorants (see below) ethanethiol and t-butyl mercaptan as well as other low molecular weight thiols, including allyl mercaptan found in human garlic breath, and the strong-smelling cyclic sulfide thietane.
If it connects at one of the three terminal carbons, it is isobutyl: −CH 2 −CH(CH 3) 2 (preferred IUPAC name: 2-methylpropyl) If it connects at the central carbon, it is tertiary butyl , tert -butyl or t -butyl : −C(CH 3 ) 3 (preferred IUPAC name: tert -butyl)
Isobutanol (IUPAC nomenclature: 2-methylpropan-1-ol) is an organic compound with the formula (CH 3) 2 CHCH 2 OH (sometimes represented as i-BuOH).This colorless, flammable liquid with a characteristic smell is mainly used as a solvent either directly or as its esters.
Isobutylene is used in the production of a variety of products. It is alkylated with butane to produce isooctane or dimerized to diisobutylene (DIB) and then hydrogenated to make isooctane, a fuel additive.