Thiosulfoxides are orthogonally isomeric with disulfides, having the second sulfur branching from the first and not partaking in a continuous chain.
Under its Mössbauer variant, the isomeric shift has found important applications in domains as different as Atomic Physics, Solid State Physics, Nuclear Physics, Chemistry, Biology, Metallurgy, Mineralogy, Geology, and Lunar research.
As a non-narcotic constituent, it also occurs to a significant amount in the bark of Uncaria tomentosa (Cat’s Claw) along with a number of isomeric alkaloids.
sec-Butylamine is one of the four isomeric amines of butane, the others being n-butylamine, tert-butylamine and isobutylamine.