Fragmentations of 5,5‐diphenylmonothiohydantoins and their N‐ and S‐methyl derivatives after electron impact

Abstract
The mass spectra of 5,5‐diphenylmonothiohydantoins and their N‐ and S‐methyl derivatives have been investigated and interpreted in terms of structural correlations. All stable isomers can be easily distinguished by their fragmentation patterns.