Differentiation of 2-alkylthioorotic acids, methyl and ethyl 2-alkylthioorotates and hydrazides of 2-alkylthioorotic acids by using electron ionization mass spectra

European Journal of Mass Spectrometry
Grazyna Bartkowiak

Abstract

Electron ionization mass spectra of 12 derivatives of 2-thioorotic acid have been discussed and general fragmentation routes of their molecular ions have been proposed. The compounds under discussion were three groups of four chemical species (2-alkylthioorotic acid, methyl 2-alkylthioorotate, ethyl 2-alkylthioorotate and 2- alkylthioorotic hydrazide) each with the same relative molecular mass. The comparison of selected ions relative abundances and their correlation with the abundance of molecular ions enable differentiation between isomeric or isobaric species in this class of compounds.

References

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Apr 3, 2003·Rapid Communications in Mass Spectrometry : RCM·Giancarlo la MarcaEnrico Zammarchi
Apr 9, 2005·Rapid Communications in Mass Spectrometry : RCM·Grazyna Bartkowiak
May 22, 2007·The Journal of Nutrition·Margaret E Brosnan, John T Brosnan

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