Abstract
Electron ionization mass spectra of 2-(2',3',4',6'-tetra-O-acetyl-beta-D-galactopyranosyl)4-(2'-phenylethyl)-5-(pyridyl)-2,5-dihydro-3H-1,2,4-triazol-3-thiones are discussed. The mass fragmentation patterns are reported that are assigned with the help of LREIMS and HREIMS peak matching of molecular ion peaks obtained by EIMS.